Who is Mackenzie Shirilla? Ohio teenager convicted of murdering her boyfriend

Mackenzie Shirilla
Mackenzie Shirilla

Teen Who Bragged About Drug Use on TikTok Convicted of Murdering Boyfriend in 100 MPH Crash

An Ohio teenager who posted a TikTok video bragging about her drug tolerance before killing her boyfriend in a 100 mph crash has been convicted of murder.

Mackenzie Shirilla, 19, was found guilty of four counts of murder on Wednesday in the July 2022 crash that killed her boyfriend, Dominic Russo, 20, and his friend Davion Flanagan, 19.

The chilling TikTok video resurfaced after Shirilla’s conviction, in which she boasts about her feelings of immortality.

“I’m not even cool I’m just one of those girls that can do a lot of drugs and not die,” the audio in the clip says while Shirilla bats her enormous fake eyebrows.

It’s unclear if Shirilla filmed the video before or after the crash, according to the Daily Mail. Her TikTok account has been switched to private.

The trio was smoking pot before Shirilla, then 17, rammed her car into the brick wall of a warehouse in the Cleveland suburb of Strongsville with no attempt to hit the brakes.

Russo, who was in the passenger seat, and Flanagan, who was riding in the back, were both declared dead at the scene.

Shirilla miraculously survived and was found unconscious with her Prada slippers still on the accelerator.

Hallucinogenic mushrooms and a scale were found near Shirilla’s body at the scene as well, detectives testified.

Assistant Cuyahoga County Prosecutor Tim Troup told the court that the teen wanted to murder Russo after their months-long fling fizzled out. Davion, who was just looking for a ride home, was just innocent “cargo,” Troup said.

Security video captured Shirilla acting with “purpose and intent” by revving her Toyota Camry to triple digits before it smashed into the building around 6:15 a.m., the judge said after the verdict in the juryless trial.

“She had a mission, and she executed it with precision. The decision was death,” added Judge Nancy Margaret Russo told the court Monday, who is not related to Dominic.

Shirilla’s mother, Nathalie Shirilla, testified last week that her daughter had been diagnosed with postural orthostatic tachycardia syndrome [POTS] — a disorder that causes her to pass out if her sodium and hydration levels are too low that could be to blame for the crash.

The primary symptom of POTS is lightheadedness or fainting, according to the National Institute of Neurological Disorders and Stroke.

The teen’s mother said she hopes her daughter’s attorney James McDonnell files an appeal.