Key detail left out of The Crash explains how Mackenzie Shirilla survived 100mph wall collision

Mackenzie Shirilla is currently serving a sentence of between 15 years and life for the double murder of Dominic Russo and Davion Flanagan, and will not be eligible for parole until 2037.

Shirilla crashed her car into a wall at 100mph, leaving Dominic already dead by the time emergency services arrived. Attempts were made to save Davion’s life, but they were unsuccessful and he died on the scene.

Netflix’s The Crash has seen a renewed interest in the case, leading to her dad Steve Shirilla being suspended and many true crime aficionados to dig deep into the crash that killed her boyfriend Dominic and his friend Davion.

Mackenzie was herself very lucky to survive the crash, having been left with multiple bone fractures and lacerated internal organs, being airlifted to a local hospital and undergoing multiple surgeries.

In Netflix’s The Crash there is a debate as to whether Mackenzie would have crashed intentionally since friends stated that she would ‘never’ kill herself.

What the documentary leaves out however is a major factor in how she survived and Dominic and Davion didn’t.

Hulu’s Mackenzie Shirilla doc has a lot of details left out of Netflix’s The Crash

Hulu’s Mean Girl Murders has an episode focused on Mackenzie Shirilla which has ‘a lot of detail’ that The Crash doesn’t.

This includes more details about the obscure route she took the morning of her crash, the fact she had practiced the route in the days leading up, and interviews with classmates of Mackenzie who compare her to Regina George from Mean Girls.

Shirilla is serving two 15 to life sentences over the deaths of her boyfriend Dominic Russo and his friend Davion Flanagan (Netflix)

One minor but crucial detail included however is the fact that, whilst Davion and Dominic were not wearing their seatbelts during the crash, Mackenzie was.

Lead prosecutor on Mackenzie’s case, Tim Troupp, said in the Mean Girl Murders episode: “She was wearing her seatbelt, she did have airbags, and the primary impact was on the passenger side of the car. She was incredibly lucky to be alive, anybody would be lucky to be alive from a crash of this magnitude.”

Troupp confirmed that neither Davion nor Dominic were wearing their seatbelts, adding: “The destruction on especially the passenger side of the car was so bad that airbags would have been almost useless. They couldn’t have survived this.”

The Black Box from Mackenzie’s car showed what likely happened in Davion and Dominic’s final moments

Speaking in the Netflix documentary, Highway Patrol officer Sergeant Ryan Fox reveals that a forensic analysis of the car’s ‘electronic data recording system’ gives information on the car prior to a major incident such as a crash.

In Mackenzie’s car it showed two clear things, that she had floored the accelerator and made no attempt to break, and that there had been input on the steering wheel in the seconds before the 100mph crash.

Mackenzie Shirilla's car after she drove it at 100mph into a wall (Cuyahoga County Prosecutor's Office)

This saw, three seconds before the crash, a right movement, a left movement, and a hard right movement. The car, an automatic, also shifted from drive into neutral into drive.

Tim Troup said: “I think the boys were trying to save their life. I think Dominic and Davion were grabbing at the wheel, yanking on the gear shift, and it was just too late.”