Brittany Holbrook Sentenced to 40 Years for Second-Degree Murder in Big Coppitt Shooting

April 11, 2025

KEY WEST, FL – Brittany Holbrook, 35, has been sentenced to 40 years in State Prison, with the first 25 years served without the possibility of earned gain time, following her conviction for the second-degree murder of her boyfriend, Tyler Nulisch. Monroe County County Judge Mark Wilson handed down the sentence today, which also includes court costs and fines.

A jury found Holbrook guilty of Second Degree Murder on February 24, 2025, taking less than one hour to render their guilty verdict.  The verdict came at the close of a week-long trial that began on February 18.

The case stemmed from a shooting that occurred in the early morning hours of June 17, 2023, at a residence in Big Coppitt. Monroe County Sheriff’s Office deputies responded to a 911 call reporting that Nulisch had been shot and was gravely wounded. When they arrived, they found him lying on the floor of the living area with a gunshot wound to the back, and Holbrook beside him. A 9mm handgun and a spent shell casing were recovered at the scene.

Before he succumbed to his injuries, Nulisch reportedly told his roommate, “That bitch shot me in the back,” directly identifying Holbrook as the shooter.

During the investigation, Holbrook initially claimed she had no memory of the incident but later said she acted in self-defense after Nulisch allegedly strangled her. However, the jury found her testimony inconsistent, and the forensic evidence did not support her version of events. There were no injuries consistent with her claims of being attacked.

“This case is a tragic reminder of how quickly domestic arguments can turn deadly,” said State Attorney Dennis Ward. “We appreciate the jury’s swift and decisive verdict and commend law enforcement and our prosecution team for their outstanding work in securing justice for Tyler Nulisch.”

Chief Assistant State Attorney Joseph Mansfield, who prosecuted the case alongside Assistant State Attorney David Alvarez, added, “The evidence spoke volumes. Mr. Nulisch’s final words, combined with the forensic findings and lack of physical injuries consistent with Holbrook’s self-defense claim, made the facts clear. We thank the jury for their service and thoughtful deliberation.”

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