Two weeks before Mackenzie Shirilla deliberately ploughed her car into a brick building, instantly killing her boyfriend Dominic Russo, 20, and his friend Davion Flanagan, 19, the then 17-year-old had threatened to cause a crash during a heated argument with Russo.
The verbal fight dissolved and eventually, Russo got out of the vehicle and was picked up by a friend. But in the early morning hours of 31 July 2022, Shirilla carried out her threats, pushing the accelerator at 100mph until her 2018 Toyota Camry became completely totalled.
