
A Denver murder trial is forcing jurors to decide whether a local guitarist’s killing was a split-second panic shot or a cold score-settling move. The defendant, tied by family to a national bluegrass star, testified that he opened fire in self-defense, even as prosecutors call it a calculated act of revenge. Investigators say new forensic work, along with missing surveillance footage, helped pull the once-cold case back into the spotlight.
The trial of 48-year-old Patrick Lee Apostol opened June 1, with lawyers giving their first pitches to the jury the following day, according to Westword. In court, defense attorney Zoe Bernstein told jurors that Apostol fired out of fear and pushed them to consider a verdict on something less than first-degree murder, telling them, "This isn't a whodunit." As Westword notes, Apostol is the half-brother of Grammy-winning bluegrass musician Billy Strings, a family connection that has kept the case in public view.
Prosecutors say it was a revenge killing
Prosecutors offer a very different story. They argue Apostol shot 34-year-old guitarist Zackary Smith after finding out that Smith had been involved with Apostol’s then-girlfriend, Mina Darnell-Strong, and say she is expected to be one of the central witnesses during the roughly two-week trial, according to Westword. The Denver District Attorney’s Office has assigned prosecutors Zach McCabe and Borna Kazerooni to try the case.
Investigators point to physical evidence
Police say Smith was discovered with a gunshot wound to the back of his head after his vehicle rolled in an alley off East 17th Avenue on September 10, 2020. Lab work later linked bullet fragments pulled from the car to a handgun tied to Apostol, and officers say the robe he wore when they first spoke with him tested positive for gunshot residue, according to CBS News Colorado. A search of Apostol’s home turned up more than 10 firearms and what investigators describe as a shed used for extracting marijuana, findings that brought in the ATF and led to a separate federal case.
Defense frames it as a panic shot
Bernstein told jurors that on the night of the shooting, Apostol was outside waiting to meet a drug contact when a car unexpectedly hit him, prompting him to fire a single round in fear before he ran back into the house, according to Law&Crime. The defense stresses that Apostol did not fire a second shot and argues that prosecutors are leaning heavily on fuzzy recollections and details that surfaced only after delays.
Federal plea, arrest, and next steps
The extraction lab and weapons evidence became the backbone of a federal drug case in which Apostol pleaded guilty to intent to distribute. Court records and coverage show that in June 2022, he received a sentence of about 30 months and served roughly 14 months before his release, after which Denver detectives arrested him in November 2023 on first-degree murder and evidence-tampering charges, CBS News Colorado reported. The trial is expected to run about two weeks, with jurors hearing from friends of those involved, forensic specialists, and eventually, Darnell-Strong.
When the jury finally files back in, their verdict will hinge on whether they believe they are looking at a terrified man reacting in a flash or an angry one settling a personal score. For Denver’s music community and neighbors who knew Smith, each day of testimony is a difficult return to a 2020 night many have been waiting years to see fully aired in court.









