Day 4 completed Sgt. Christopher Corbitt's cell-site testimony through cross, redirect, and recross — yielding key defense concessions and prosecution repairs — then moved through three FBI undercover witnesses who authenticated the bump operation and the Dolce Vita and Matsuri covert recordings, culminating in the Dolce Vita recording played for the jury.
Full day summary
Day 4 opened outside the jury's presence with a ruling on the prosecution's rolling Dolce Vita transcript demonstrative. Defense counsel Meyers objected that the state had replaced 166 instances of "inaudible" with ellipses and dashes, which she argued would misrepresent the scale of unrecovered content. Judge Everett agreed: the demonstrative must reproduce the court reporter's transcript verbatim, with "inaudible" appearing wherever it appears. The ruling preserved defense voir dire rights over foundation witnesses before jury display.
Dan Rashbaum then completed his cross-examination of TPD Sgt. Christopher Corbitt, the state's lead cell-site forensic analyst. The cross drew three categories of concessions: structural gaps in the record (AT&T data begins only in May 2014, iMessages leave no carrier-level trace, SunPass records are unavailable); limits on the inferential value of call patterns (Corbitt confirmed the records carry no content and that frequency "could be varied" in meaning); and specific timeline points favoring the defense (Charlie's cell data placed him driving south from Jupiter on July 18, texts showed routine work activity on the day of the murder, and on July 19 — the alleged money-drop day — he did not leave his residence for nearly 24 hours). The cross also established that Magbanua called Sigfredo Garcia at 12:48 a.m. on July 15, six minutes after Charlie departed her residence, and confirmed there are zero phone calls between Charlie Adelson and Garcia in either direction across the entire record.
Prosecutor Dugan used redirect to repair four points. She corrected a presentation error: it was Magbanua, not Charlie, who sent the "effing pussy" text about Garcia — a message Magbanua shared with Charlie, countering any inference she was shielding Charlie from knowledge of Garcia as a dangerous person. She established that Charlie's calls to his parents' landline carried investigative weight specifically because he was recorded on wiretaps discussing the practice of using landlines to avoid cell-site tracing. She dismantled Defense Demonstrative Exhibit B by producing divorce filings showing that May 2 and May 7, 2014 — the "random days" the defense used to normalize call-clustering patterns — were in fact days of escalating legal conflict: a motion to compel on May 2, a motion for sanctions and Wendi's counsel seeking to withdraw on May 7. Finally, Dugan separated two Donna Adelson messages Rashbaum had conflated: the caterer inquiry (no deletion instruction) versus the March 4 message (a private bathroom call request followed by "dad's birthday gift" language and an instruction to delete the text). A tightly controlled recross — limited by Judge Everett to one question — confirmed that Donna Adelson's phone registered far from Trescott Drive at 12:31 a.m.
Before the undercover witnesses took the stand, Judge Everett issued an order protecting the identities of upcoming FBI agents Jimenez, Bronstein, and Kendall, directing media not to broadcast or disseminate any identifying images, as those officers remain in active undercover assignments.
FBI Special Agent Oscar Jimenez Jr. described the April 19, 2016 "bump" of Donna Adelson outside her Miami Beach residence. He explained the bump technique — a face-to-face undercover contact designed to extract information, deliver a message, set up future meetings, or stimulate wiretap activity — and authenticated State's Exhibit 78 (the flyer combining a Markel murder news article with an undercover phone number and a $5,000 demand) and State's Exhibit 105 (dual-angle video of the approach). On cross, Rashbaum established that law enforcement retained no copy of the flyer, that no money was ever paid despite the bump and multiple subsequent contacts, that Jimenez was specifically instructed to suppress his gang persona when approaching Donna, and that Magbanua allegedly told Charlie the undercover number was non-working and that Garcia had left a voicemail on it — a claim Jimenez refuted by confirming the number was fully operational throughout.
FBI Special Agent Louis Bronstein described his role at the Dolce Vita restaurant on April 20, 2016. Repositioned from the bump's security element, he entered Dolce Vita carrying a covert recording bag and positioned himself approximately ten to twelve feet from Charlie Adelson and Magbanua. He testified that his recording was more successful than a second device also present and authenticated State's Exhibit 109. On cross, Rashbaum drew three concessions: Bronstein arrived after the participants had already begun talking; he was unaware of any conversation in a car before they entered; and restaurant noise was sufficient that he could not make out the content of their conversation from eight to ten feet away.
Media forensics engineer James Keith McElveen, tendered without defense challenge as an expert in forensic engineering, described his audio clarification process as analogous to unblurring a photograph — software focuses on nearby voices while suppressing ambient noise — and characterized the Dolce Vita source audio as "a mess." He confirmed that his processing tool cannot selectively omit or alter words, authenticated the clarified Dolce Vita recording (State's Exhibit 110, admitted over a preserved objection) and the clarified Matsuri recording (State's Exhibit 113, admitted without objection). On cross, Rashbaum established that the device entered the restaurant mid-conversation — roughly twenty minutes of lead-up preceded the enhanced segment — and pressed McElveen to concede that the jury would effectively hear only one side of the exchange: Magbanua spoke infrequently, often faced away from the device, and spoke at a level so low that the male participant repeatedly asked her to repeat herself. McElveen also confirmed that whispered exchanges at Matsuri are permanently unrecoverable because the participant's head physically blocked the directional audio focus.
An undercover officer assigned to the FBI Violent Crimes Task Force described the April 21, 2016 Matsuri sushi bar operation: positioned next to Harvey Adelson at the bar, the officer's covert device captured Charlie and Harvey Adelson's conversation. State's Exhibit 112 was admitted without objection. On cross, Rashbaum identified three unrecorded windows — any conversation before they entered, whispered exchanges during the meal, and a parking lot conversation the officer personally observed afterward — and elicited that Charlie Adelson surrendered peacefully at his 6 a.m. April 2022 arrest.
FBI Special Agent Patrick Sanford was recalled to fill evidentiary gaps and introduce the wiretap evidence tying together the undercover operation. He testified that Dan Markel survived approximately fourteen hours after being shot; that the Markel grandparents had zero visits with their grandchildren from May 2016 to April 2022; and that Luis Rivera's proffer had disclosed Garcia fired a shot inside the rental Prius, confirmed by a second search-warrant inspection that found the bullet path through the passenger floorboard and into the fuel line (States's Exhibits 49–53). Sanford explained the bump's targeting logic: pre-murder communications consistently ran Donna Adelson to Charlie to Magbanua to Garcia and back, so investigators entered the chain at Donna's end. He established the Halloween 2013 date — October 31, 2013 — as a chronological nexus: the day Donna pressured Charlie to discourage Wendi's Tallahassee house purchase is the same date Magbanua said Charlie first approached her about harming Markel. Post-bump wiretap calls showed Charlie and Donna discussing the approach in coded language, never naming Markel or Magbanua, with Charlie instructing his mother not to discuss anything indoors. Charlie's next call after three Donna calls was to Magbanua — not to Whitney Kick, who Sanford testified was actually his most recent ex-girlfriend. The Dolce Vita covert recording (State's Exhibit 111, approximately forty to forty-five minutes) was introduced over prior-preserved defense objection. Judge Everett delivered an inaudibility instruction and a transcript-guidance cautionary instruction, and the recording was played for the jury as the final act of the day.