Dan Markel Murder: The Adelson Family and the Evidence

On July 18, 2014, Florida State University law professor Dan Markel pulled into his garage while talking on the phone about a school for his two young sons.

He noticed someone unfamiliar in his driveway and interrupted the conversation.

Moments later, he was shot.

Dan died the following day. He was 41 years old.

At first, investigators had a car, a handful of surveillance images and very little explanation for why someone would travel to Tallahassee to kill a law professor.

Over the next eleven years, the investigation would uncover a murder-for-hire plot, a complicated money trail, secretly recorded conversations and connections to Dan’s former in-laws.

By September 2025, five people had been convicted or entered a plea in connection with his killing, including his former brother-in-law, Charlie Adelson, and former mother-in-law, Donna Adelson.

But getting to those convictions took years. And the question at the center of our two-part This Feels Criminal series is one that isn’t easily answered.

How do you prove who ordered a murder when the people who planned it never pulled the trigger?

Who Was Dan Markel?

Before his name became associated with one of Florida’s most closely followed murder cases, Dan Markel was a father, a professor and a man who had built his career around questions of justice.

Dan grew up in Toronto and studied at Harvard, Cambridge and Harvard Law School. He joined the Florida State University College of Law in 2005 and became a tenured professor in 2010.

His academic work focused heavily on criminal punishment, including what society hopes to accomplish by punishing someone who has committed a crime.

He also co-authored a book called Privilege or Punish, which explored the role of family relationships in the justice system.

That detail feels particularly difficult to overlook now.

Friends remembered Dan as ambitious, energetic and deeply engaged with the people around him. His parents, Ruth and Phil Markel, spoke about how much he loved being a father.

He had two young sons, and he wanted to remain part of their everyday lives.

That mattered enormously in the divorce that preceded his murder.

Dan Markel, Wendi Adelson and the Custody Dispute

Dan married Wendi Adelson in 2006. They had two sons and lived in Tallahassee, where both worked in law-related careers.

Wendi’s parents, Donna and Harvey Adelson, lived in South Florida. Harvey owned a successful dental practice, and Donna helped run the business. Their son Charlie, a periodontist, also worked in the family’s dental practice.

By the time Dan and Wendi’s marriage ended, Wendi wanted to move back to South Florida with the children.

Dan opposed the move.

In January 2013, Wendi asked a Florida court for permission to relocate the boys. That June, a judge denied her request.

The divorce was finalized the following month.

The ruling meant that Wendi could not simply move the children hundreds of miles away while Dan remained in Tallahassee.

For prosecutors, that custody decision eventually became central to the alleged motive for Dan’s murder.

Why did the relocation dispute matter?

Evidence presented at trial showed how intensely Donna Adelson involved herself in her daughter’s divorce.

In emails, Donna urged Wendi to fight for what she wanted. She discussed the importance of relocation and encouraged Wendi to put on what she called the “performance of your life.”

There was also discussion within the family about offering Dan $1 million to allow the boys to move. Wendi testified that, as far as she knew, no such offer was actually made.

The conflict continued.

Dan sought restrictions on Donna’s contact with the children after allegations that the boys were hearing negative comments about him. That request was still pending when he was killed.

An ugly divorce and a contentious custody dispute do not, by themselves, establish a murder plot. Plenty of families experience bitter legal fights without anything remotely like this happening.

What made this case different was the evidence investigators began finding after Dan’s death.

What Happened to Dan Markel on July 18, 2014?

On the morning of July 18, Dan dropped his sons off at preschool and went to the gym.

Surveillance footage showed a light-colored Toyota Prius in the gym parking lot. It remained there for an extended period, moving around without anyone appearing to get out.

When Dan left, the Prius followed.

Later that morning, Dan returned to his home on Trescott Drive.

A neighbor heard a gunshot and saw a small, light-colored car backing quickly out of Dan’s driveway.

Dan had been shot in the head while sitting in his vehicle.

His wallet remained at the scene, giving investigators little reason to believe robbery was the motive.

He died early the next morning.

The Prius became one of the investigation’s most important leads.

But investigators still needed to know who was inside it, why they were in Tallahassee and who might have wanted Dan dead.

The TV Joke That Became Part of the Investigation

One of the strangest details in the Dan Markel case involves a television.

On the morning of the murder, Wendi Adelson had a Best Buy technician at her house to address a problem with her TV.

Later that day, after police informed her of the shooting, Wendi voluntarily participated in an interview.

During that interview, she told Detective Craig Isom about a joke her brother Charlie had made.

According to Wendi, Charlie had joked that hiring a hitman would cost more than buying her a television.

She also told police that she had repeated the joke to the repair technician that very morning.

Charlie later acknowledged making the joke, describing it as a stupid thing to say. He denied ever investigating the possibility of hiring someone to kill Dan.

Wendi has consistently maintained that it was a joke.

But another witness would give investigators a very different account of a conversation about hiring a hitman.

What Did Jeff Lacasse Tell Police?

Jeff Lacasse, a Florida State University professor who had dated Wendi before Dan’s murder, initially came under scrutiny as investigators examined people connected to the family.

He was cleared and had an alibi.

In 2015, he returned to investigators with information he believed was important.

Lacasse said Wendi had told him, just days before Dan was killed, that Charlie had previously looked into hiring a hitman to deal with what she described as the “Danny Markel problem.”

He testified that he understood this as a serious conversation, not the television joke he had heard separately.

Wendi denied telling Lacasse that Charlie had explored hiring a hitman.

Lacasse’s account was also challenged because he waited months before bringing it to investigators, and because the statement involved him recounting something Wendi allegedly said Charlie had said.

The two versions remain important to distinguish.

One describes a tasteless family joke. The other describes a conversation that Lacasse believed was about a genuine threat.

Neither account should be treated as independently proving who arranged Dan’s murder.

How Investigators Connected the Prius to the Killers

The investigation eventually moved from Tallahassee to South Florida.

Surveillance footage, cellphone records and an ATM camera helped investigators identify two men associated with the Prius.

They were Sigfredo Garcia and Luis Rivera.

Rivera later admitted participating in the killing and identified Garcia as the shooter.

Investigators also discovered a connection between Garcia and Katherine “Katie” Magbanua, the mother of Garcia’s children.

Katie had been romantically involved with Charlie Adelson.

That connection gave investigators a possible path between the men who carried out the shooting and Dan’s former in-laws.

The next question was whether money had traveled along that same path.

The Money Trail: Katherine Magbanua and the Adelson Dental Practice

After Dan’s murder, Katie Magbanua began receiving paychecks from the Adelson family’s dental practice.

There were 44 checks, beginning in September 2014 and continuing until May 2016.

All were signed by Donna Adelson.

Katie later acknowledged that she had not performed work for the practice.

Investigators also examined cash deposits, financial assistance and a vehicle connected to Charlie’s family that ended up in Katie’s possession.

Prosecutors would eventually argue that the checks and other benefits were part of the payment arrangement for Dan’s murder.

Charlie offered a different explanation at his trial.

He said Katie had been connected to people who were extorting him after Dan’s death and that he paid because he feared for his life and his family’s safety.

That competing explanation became a major issue when Charlie finally took the witness stand.

But first, investigators needed something they still didn’t have.

They needed the people connected to the case to start talking.

The FBI Sting That Changed the Dan Markel Investigation

By 2016, investigators had identified the men associated with the Prius and followed a trail of connections toward Katie, Charlie and Donna.

What they lacked was a direct conversation about the murder.

So the FBI created one.

On April 19, 2016, an undercover agent approached Donna Adelson outside her Miami condominium.

He handed her a news article about Dan’s murder with a phone number and a handwritten demand for $5,000.

The agent suggested that someone connected to the killing needed additional money.

Investigators call this type of operation a bump. The idea is to introduce an unexpected problem and monitor how the people involved react.

Donna called Charlie.

The calls and meetings that followed became a crucial part of the prosecution’s case.

Investigators traced communications from Donna to Charlie, from Charlie to Katie and onward toward Garcia.

Prosecutors argued that the sequence reflected the same chain of people involved in arranging Dan’s murder.

Charlie later testified that he believed the approach was connected to an extortion attempt and eventually suspected law enforcement was behind it.

The sting didn’t produce a straightforward confession.

It did produce conversations that prosecutors would spend years trying to interpret and present to juries.

Why Was the Dolce Vita Recording So Important?

After the FBI approached Donna, Charlie met Katie at a restaurant called Dolce Vita.

Investigators secretly recorded the conversation.

Unfortunately for them, the restaurant was noisy.

Clattering dishes, background conversations and microphone placement made much of the recording difficult to understand.

For years, only a small portion could be used effectively in court.

In 2022, an audio specialist enhanced the recording, making more of Charlie’s statements intelligible.

The enhanced audio became important evidence in the case against him.

Prosecutors focused on Charlie’s discussion of the FBI approach, the possibility of evidence, and what might happen if someone kept demanding money.

His defense argued that the conversation was entirely consistent with his claim that he was being extorted.

There is no simple, recorded admission in which Charlie says he hired someone to murder Dan.

Instead, jurors had to consider the recording alongside the phone records, financial evidence and witness testimony.

That is part of what makes the Dolce Vita recording so interesting, and why we spend time unpacking it in Part Two of our podcast series.

Who Was Convicted in Dan Markel’s Murder?

The Dan Markel murder investigation resulted in multiple prosecutions over several years.

Here is the status described in the case records through October 2026.

Person	Role or connection	Outcome
Sigfredo Garcia	Identified as the shooter	Convicted in 2019 and sentenced to life
Luis Rivera	Participated in the killing and cooperated with investigators	Pleaded no contest to second-degree murder and received 19 years
Katherine Magbanua	Connected Garcia and Charlie Adelson	Convicted in 2022 and sentenced to life
Charlie Adelson	Dan’s former brother-in-law	Convicted in 2023 and sentenced to life plus additional prison terms
Donna Adelson	Dan’s former mother-in-law	Convicted in September 2025 and sentenced to life without parole plus additional prison time

These outcomes came through separate proceedings, with different evidence and different defense arguments.

What was Charlie Adelson’s defense?

Charlie testified at his 2023 trial.

He denied arranging Dan’s murder and claimed he was the victim of an extortion scheme carried out by people connected to Katie.

According to Charlie, Katie came to him after Dan was killed and told him that someone she knew was responsible. He said he handed over money because he feared those people would kill him too.

Prosecutors challenged why he continued sending affectionate messages, offering financial help and maintaining a close relationship with Katie if she was connected to people threatening his life.

They also questioned why he never went to police.

A jury convicted Charlie of first-degree murder, conspiracy and solicitation in November 2023.

His convictions were upheld on direct appeal in July 2026.

What evidence was used against Donna Adelson?

Donna’s trial took place in 2025.

Jurors heard about the custody dispute, Donna’s emails, the FBI bump operation and the 44 paychecks she signed for Katie.

Katie also testified about Charlie’s involvement and described him stepping away to contact his mother during discussions about the plan, although Katie did not know what was said during those calls.

Donna’s defense argued that she was a highly involved mother who believed Charlie’s extortion explanation.

Her attorneys disputed that she had helped plan Dan’s murder.

Jurors found Donna guilty on all three counts submitted to them on September 4, 2025.

She was sentenced to life without parole, with additional prison time, and has maintained her innocence.

Her appeal was pending in the records used for this article.

Were Wendi Adelson and Harvey Adelson Charged?

As of the October 2026 case materials used for this article, neither Wendi Adelson nor Harvey Adelson had been charged in Dan Markel’s murder.

Both have denied involvement.

Wendi testified in multiple proceedings, and prosecutors questioned her about the divorce, the television joke, her movements on the day of the murder and her relationships with members of her family.

Her testimony was subject to use and derivative-use immunity, which restricts prosecutors from using that testimony or evidence derived from it against her.

That immunity is not a blanket promise that she can never be charged.

It is equally important to understand that convictions involving Charlie and Donna do not establish criminal responsibility for Wendi or Harvey.

There has been substantial public discussion about both, but suspicion and a criminal conviction are very different things.

What Happened to Dan Markel’s Sons?

For all the courtroom testimony, surveillance footage and legal arguments, there are two people whose lives were changed before they were old enough to understand what had happened.

Dan’s sons were young children when he was murdered.

After his death, Wendi moved with them to South Florida and changed their surname from Markel to Adelson.

Dan’s parents, Ruth and Phil Markel, spent years trying to maintain a relationship with their grandsons.

They lost contact for a period beginning in 2016, and limited contact resumed in 2023.

The family also advocated for changes to Florida’s grandparent visitation law, leading to legislation commonly called the Markel Act, signed in 2022.

The law provides a pathway for grandparents to seek visitation in certain circumstances when one parent is found criminally or civilly responsible for the death of the other.

It does not automatically apply to the Markel family, because there has been no such finding against Wendi.

That legal distinction matters, even as Ruth and Phil continue living with the loss of their son.

Dan was a professor who spent his career thinking about justice and punishment.

His parents have now watched multiple people convicted in connection with his murder.

But those verdicts cannot give their grandsons back the years they should have had with their father.

Key Takeaways From the Dan Markel Murder Case

• Dan Markel was murdered on July 18, 2014, at his Tallahassee home and died the next day. He was a 41-year-old Florida State University law professor and father of two.
• The custody dispute was central to the prosecution’s motive theory. Dan opposed relocating his sons from Tallahassee to South Florida.
• Investigators identified Sigfredo Garcia and Luis Rivera through evidence including surveillance footage, cellphone records and an ATM recording.
• Katherine Magbanua connected the killers to Charlie Adelson. She later testified about arranging the murder and the payments that followed.
• Donna Adelson signed 44 paychecks to Katie, who admitted she never worked for the family’s dental practice.
• An FBI sting in April 2016 generated recorded calls and meetings that became important evidence in the prosecutions.
• The enhanced Dolce Vita recording helped prosecutors build their case against Charlie, although his defense disputed the interpretation.
• Charlie Adelson and Donna Adelson were convicted in separate trials. Both denied involvement in arranging Dan’s murder.
• Wendi Adelson and Harvey Adelson had not been charged as of the October 2026 materials used in this article
• Dan’s two sons and his parents remain central to the human cost of the case, regardless of how many convictions followed.

Frequently Asked Questions About the Dan Markle Murder Case