Investigator Yao's conditional taller-shooter trajectory opinion, which the State associated with Garcia, survived defense challenges but was sharply qualified on cross; Detective Isom laid out the Prius-rental-to-Garcia-to-Magbanua investigative chain and conceded gaps in the Adelson financial and communication record; Wendi Adelson testified under compelled immunity about the divorce, her brother Charlie, and her movements the day of the murder.
Full day summary
The day opened with the court denying Garcia's motion to exclude and Daubert challenge to Investigator Robert Shawn Yao's trajectory opinion that the shooter was approximately six feet tall, and ordering depositions of Luis Rivera's attorneys after the State added them as late witnesses over defense objection. Yao then testified that physical evidence — a partial bullet hole in the window, comparative shoulder heights, and a downward bullet declination — was more consistent with a taller shooter matching Garcia rather than the shorter Rivera. On cross-examination by Zangeneh and DeCoste, Yao conceded the analysis required two fixed points but only one existed, that he had not seen the victim's actual seated position, and that he could not state the conclusion with certainty. Retired TPD investigator Craig Isom then gave the prosecution's investigative narrative: Donna Adelson's emails proposing a religious-conversion threat and a million-dollar bribe to Markel, Harvey and Donna Adelson's refusal to come for interviews and Wendi Adelson's later decision to end a follow-up call after her same-day interview, and the surveillance and toll-record chain that traced a rented Prius to Luis Rivera, a phone number to Sigfredo Garcia, and Garcia's connection through Katherine Magbanua to Charlie Adelson. Cross-examination by Zangeneh and DeCoste drew out significant gaps: the bus-camera Prius could not be confirmed as the rental vehicle, investigators tracked only one of Garcia's known phone numbers, phone records showed almost no direct contact between Garcia and the Adelsons, the September 30, 2016 Rivera proffer interview was not recorded despite available equipment, and Isom's written report on that interview omitted the justifications he gave at trial. Isom also conceded investigators never checked Magbanua's claimed nightclub income; the theory inferred Magbanua's intermediary role from the absence of direct evidence linking Garcia and Rivera to any Adelson. On redirect, Cappleman highlighted that Magbanua's highest cash-deposit month coincided with the murder and that her Adelson Institute paychecks began two months after Markel's death. A brief records-foundation witness, T-Mobile's Ronald Witt, authenticated a cell-tower dump admitted without objection. The afternoon centered on Wendi Adelson, compelled to testify under use-and-derivative-use immunity after a sidebar. She described the acrimonious divorce and custody dispute, confirmed her brother Charlie's recurring joke about pricing a hitman against a television he ultimately gave her, and placed herself near the crime scene on Trescott Drive the afternoon of the murder without turning onto it. She denied involvement, answered "I don't believe so" when asked if Charlie had any role in the murder, and pushed back on suggestions that a post-murder dinner with Charlie was celebratory. Cross-examination by Zangeneh probed Charlie's lifestyle and floated a possible independent Rivera-Charlie drug relationship; cross by Kawass highlighted that neither Charlie nor Donna Adelson had been charged and pressed Wendi on the completeness of her wiretap review and her own uncertain status as a potential suspect. The judge closed the day by explaining Florida's immunity tiers on the record and directing the parties to complete the delayed Collins-attorney depositions before Rivera's testimony the following Tuesday.