Dan Markel Murder: The Adelson Family, Murder-for-Hire Plot & Evidence That Unraveled the Conspiracy

Jaded Evidence | Investigation and court-record review | Updated October 11, 2026

Case status: Five people have been convicted in connection with the murder of Florida State University law professor Daniel “Dan” Markel. Several convictions and sentences are subject to appellate review. The account below distinguishes trial findings, testimony, prosecution allegations, defense positions, and questions not established by available records.

The victim: Daniel Markel

Dan Markel was a 41-year-old law professor at Florida State University and father of two. On July 18, 2014, he was shot while seated in his car at his Tallahassee home. He died the following day. The killing followed a difficult divorce and dispute over whether his two sons would relocate from Tallahassee to South Florida.

The fact that Markel was a person with a career, family, and children—not merely the subject of an infamous prosecution—must remain central to the account.

What happened on July 18, 2014?

July 18, 2014 — Interactive event-by-event timeline

Select any of the 22 events to reveal its supporting evidence and limitations. Documented means timestamped record or stipulation; Estimated means reconstructed timing; Disputed means testimony or records vary. A timestamp does not establish intent or guilt.

Morning

8:50 a.m. · Preschool drop-off Documented

The parties stipulated Markel dropped his children at Creative Preschool at 8:50 a.m. A witness later estimated a different time.

Source type and limitation: Stipulation; conflicting witness estimate.

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9:16 a.m. · Prius reaches the gym Documented

Premier surveillance recorded a Prius arriving before Markel’s departure.

Source type and limitation: Gym surveillance and investigator testimony.

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10:38 a.m. · Markel leaves the gym Documented

Surveillance shows Markel leaving Premier Health and Fitness and the Prius departing immediately afterward.

Source type and limitation: Authenticated surveillance; this does not independently identify occupants.

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Route and shooting

10:48–10:51 a.m. · Vehicles recorded along the route Documented

Bus cameras recorded Markel’s vehicle southbound and a Prius moving toward Benton Road.

Source type and limitation: Bus-camera footage.

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10:51–10:55 a.m. · Shooting window at the garage Estimated

The bus-camera sequence brackets an approximate four-minute shooting window. Rivera testified Garcia approached the driver’s side and shot Markel.

Source type and limitation: Time range inferred from bus footage; shooter identification from Rivera’s testimony.

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Around the shooting · Schlazer’s interrupted phone call Estimated

Stewart Schlazer recalled Markel mentioning an unfamiliar person, followed by a sound and sudden interruption. No precise call start time is established here.

Source type and limitation: Witness recollection, not a precisely timestamped call.

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10:55 a.m. · Prius recorded near Hermitage Documented

A bus camera recorded the Prius traveling northbound. Two people appeared to occupy the front seats, but the images did not identify them.

Source type and limitation: Bus surveillance; identification limitation.

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Response

Immediately afterward · Neighbor hears a bang Estimated

James Geiger reported hearing a bang and seeing a light-colored car leave. He could not identify occupants or the license plate.

Source type and limitation: Geiger testimony.

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Minutes later · Neighbor discovers Markel Estimated

Geiger described returning to the garage, observing a shattered driver’s window, and finding Markel gravely injured.

Source type and limitation: Geiger testimony.

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About 11:01–11:02 a.m. · Emergency calls reported Disputed

Geiger and Schlazer both testified that they called 911. Available testimony does not definitively assign each reported time to a particular caller.

Source type and limitation: Witness accounts; disputed call timing.

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During the 11 a.m. hour · First officer arrives Estimated

Officer David Sims described finding Markel unresponsive in the running vehicle.

Source type and limitation: First-responder testimony.

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Minutes after first officer · EMS begins care Estimated

Sims estimated emergency medical personnel arrived three or four minutes after he did and removed Markel from the car.

Source type and limitation: First-responder estimate.

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Time not established · Hospital trauma treatment Unknown

Markel was taken to Tallahassee Memorial for critical trauma care. The cited treating-surgeon testimony did not supply an exact admission time.

Source type and limitation: Medical testimony.

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Calls

11:42 a.m. · Wendi Adelson calls Markel Documented

Phone records show an unanswered call that routed to voicemail. The records do not establish why she called.

Source type and limitation: Phone-detail records; purpose unknown.

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12:29–12:30 p.m. · Garcia calls Magbanua Documented

Garcia’s phone registered with the network again and placed a brief call to Katherine Magbanua. The records do not prove why the phone previously was unavailable.

Source type and limitation: Carrier records; no proven deliberate shutdown.

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Wendi’s route

About noon–12:45 p.m. · Departure for lunch Disputed

Wendi Adelson’s estimates of when she left home varied in testimony. A 12:31 phone event is the first recorded point supporting a route reconstruction.

Source type and limitation: Differing testimony and phone records.

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12:31–12:47 p.m. · Phone records trace travel Estimated

Cell-site records are consistent with movement toward ABC Fine Wine and Spirits, but they do not provide exact GPS locations.

Source type and limitation: Cell-site analysis; location limits.

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About 12:35–12:45 p.m. · Roadblock encounter Estimated

Investigators estimated the roadblock-encounter window using phone activity and the later purchase receipt; no direct roadblock timestamp fixes it.

Source type and limitation: Reconstructed from multiple records.

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Within roadblock window · Accounts of the turn vary Disputed

Across proceedings Wendi Adelson gave differing descriptions of whether and how she turned near Trescott. Another witness described an Odyssey but could not identify its driver.

Source type and limitation: Trial testimony; differing descriptions.

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12:49:13 p.m. · ABC purchase receipt Documented

A liquor-store receipt fixes a transaction to the second, but does not establish the precise earlier roadblock time.

Source type and limitation: Timestamped transaction receipt.

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After 12:49 p.m. · Arrival at Mosaic restaurant Estimated

Testimony describes Wendi Adelson going to Mosaic for lunch. The precise arrival time is not fixed by the receipt.

Source type and limitation: Witness accounts.

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About 1:30–2:15 p.m. · Detective contacts Wendi Disputed

Detective Craig Isom’s estimates of the restaurant contact varied across trials. Wendi later testified that police told her about the shooting while she was in their vehicle.

Source type and limitation: Differing trial estimates and witness account.

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Original evidence-linked timeline by Court Daemon ↗. Timeline summaries here are independently written for Jaded Evidence; consult primary testimony for exact quotations.

The reconstructed timeline below comes from surveillance recordings, stipulations, telephone records, witness testimony, and trial exhibits. Where the exact time is not independently documented, a range is used.

• 8:50 a.m. — Markel dropped his children at preschool, according to a stipulation described at trial.
• 9:16 a.m. — Surveillance showed a Prius arrive at Premier Health and Fitness, where Markel later worked out.
• 10:38 a.m. — Gym video and testimony trace Markel leaving; investigators argued a Prius followed his route.
• About 10:51–10:55 a.m. — A city-bus-video reconstruction brackets the approximate shooting window. It does not film the shooting itself.
• Shortly afterward — A neighbor discovered Markel gravely injured in his garage. Emergency personnel responded, and he was transported for trauma care.
• 11:42 a.m. — A call from Wendi Adelson to Markel went unanswered and routed to voicemail. The phone record does not establish why the call was made.
• 12:30 p.m. — Phone records show a short call from Sigfredo Garcia to Katherine Magbanua after Garcia’s handset reconnected to the network.
• 12:49:13 p.m. — A liquor-store receipt records Wendi Adelson’s purchase, one reference point used to reconstruct her movements after the shooting.

Review the underlying citations: Court Daemon’s July 18, 2014 evidence-linked timeline. Its labels—documented, estimated, disputed—are useful because not every timestamp has the same evidentiary strength.

How prosecutors said the conspiracy worked

Prosecutors argued that Markel’s resistance to relocating the children, and the broader conflict with his former wife’s family, supplied a motive for a contract killing. Their case connected Charlie Adelson to Katherine Magbanua, who had relationships with both Charlie and Sigfredo Garcia. Luis Rivera and Garcia traveled to Tallahassee; Rivera later cooperated and testified about Garcia’s role in the shooting.

That account was tested through multiple trials. A jury verdict can establish criminal culpability for a convicted defendant; it does not make every claim about every relative or witness an adjudicated fact.

The defendants and outcomes

• Sigfredo Garcia: Convicted of first-degree murder and conspiracy; sentenced to life imprisonment.
• Luis Rivera: Pleaded guilty to second-degree murder, received a 19-year sentence, and testified for the prosecution.
• Katherine Magbanua: Convicted following a retrial of first-degree murder and related charges; sentenced to life imprisonment.
• Charlie Adelson: Convicted in 2023 of first-degree murder, conspiracy, and solicitation; sentenced to life imprisonment. Florida’s First District Court of Appeal affirmed his convictions and sentence on July 1, 2026.
• Donna Adelson: Convicted in 2025 of first-degree murder, conspiracy, and solicitation and sentenced to life imprisonment on October 13, 2025. Her direct appeal remained active in the September 2026 docket materials reviewed.

Where Wendi Adelson fits—and the legal distinction that matters

Wendi Adelson is Markel’s former wife and the mother of his children. She testified during criminal proceedings and her statements, phone activity, emails, and travel on the day of the shooting became subjects of courtroom examination. She has not been criminally charged in Markel’s murder and has denied involvement.

Important: Being identified in a prosecution theory, examined as a witness, or described as an uncharged co-conspirator does not equal a criminal charge or conviction. This investigation will not present disputed allegations concerning her as established fact.

Evidence examination: what the juries heard

1. Gym, city-bus, and vehicle surveillance

Investigators traced a rental Toyota Prius using recordings from the gym and city buses. Exhibits were presented to juries with some selected segments and visual highlighting. The images assisted in reconstructing movements, but the bus recording did not itself identify the occupants.

2. Telephone, location, and digital records

Call-detail records and cell-site analyses supported communication timelines linking individuals involved in the prosecution’s theory. Such records may show time, connections, and approximate coverage areas; they do not, by themselves, prove what a caller said or intended.

3. Financial records and alleged payments

Bank records, cash-deposit summaries, employment records, and ATM evidence were introduced in proceedings. The prosecution used these to support its theory of compensation and coordination. Each exhibit should be evaluated for what it actually documents, rather than accepting an interpretation as the record itself.

4. Cooperating-witness testimony

Luis Rivera’s testimony was central to the prosecution’s narrative. The credibility of a cooperating participant, including any plea agreement or incentive, must be considered alongside independently corroborating or conflicting evidence.

5. Recordings and the Dolce Vita meeting

Investigators recorded a 2016 meeting involving Charlie Adelson and Katherine Magbanua at the Dolce Vita restaurant. The words, context, and intelligibility of recordings were contested. Readers should review the admissible recording and transcript together before drawing conclusions from isolated phrases.

Prosecution versus defense: the key disagreements

Prosecution: A coordinated, paid murder that grew out of the Adelson family dispute over the children’s relocation, supported by overlapping circumstantial evidence, communications, financial records, surveillance, and witness testimony.

Defense positions: Different defendants contested aspects of the State’s narrative, including the credibility of cooperating witnesses, attribution and interpretation of recordings, the meaning of money transfers, and the sufficiency of evidence connecting them to a plan to kill Markel. Charlie Adelson’s defense also advanced an extortion explanation. The defense accounts should be read from each trial, not treated as interchangeable.

Court proceedings and appeals

• 2019: Garcia was convicted; proceedings involving Magbanua resulted in no unanimous verdict on her charges.
• 2022: Magbanua was convicted following retrial.
• 2023: Charlie Adelson was convicted.
• 2025: Donna Adelson was convicted and sentenced; her notice of appeal followed.
• July 1, 2026: The First District Court of Appeal affirmed Charlie Adelson’s convictions and sentence.
• September 8, 2026: The appellate court accepted Donna Adelson’s amended initial brief and directed the State to respond. This is a procedural development, not a decision on her appeal.

Primary records and trial-source library

The links below are research gateways, not an assertion that every file in a third-party collection is itself an official certified court record. Whenever possible, the source log should be cross-checked against admitted exhibits, court dockets, orders, and appellate opinions.

• Dan Markel Case Archive — proceedings and evidence
• Master case chronology
• July 18, 2014 reconstructed timeline and source citations
• Searchable evidence and exhibit index
• Dan Markel — person and testimony references
• Charles Adelson v. State — July 1, 2026 appellate opinion

Evidence questions worth examining

• Which portions of the July 18 timeline are supported by timestamped recordings rather than witness estimates?
• How do phone records, financial records, and surveillance independently corroborate—or limit—participant testimony?
• What did each defendant’s defense argue, and which claims were directly tested against physical or digital evidence?
• What is the procedural status of each remaining appeal, and what legal issues are actually presented?
• Which claims about people not charged in the case remain disputed or unsupported by an adjudicated finding?

Jaded Evidence editorial standard: Facts over speculation. Criminal convictions are identified as convictions; contested accounts are attributed; unsworn commentary and inference are never substituted for evidence. This article is an educational report and does not assert guilt by association.