Newly released text messages have added another layer to the already disturbing case of Mackenzie Shirilla, the Ohio woman dubbed “Hell on Wheels” by a judge after she intentionally crashed her car at over 100 mph into a brick wall, killing her boyfriend and his friend.

Shirilla, now 21, was convicted in 2023 of murdering 20-year-old Dominic Russo and 19-year-old Davion Flanagan in Strongsville, Ohio, on July 31, 2022. Prosecutors argued the crash was a deliberate murder-suicide attempt after Russo tried to break up with her. According to court evidence, Shirilla accelerated without braking and slammed her 2018 Toyota Camry into a dental office building.

In the latest development, chilling text exchanges obtained by TMZ and reviewed during the investigation reveal a highly toxic and volatile relationship between Shirilla and Russo. Weeks before the fatal crash, Shirilla accused her boyfriend of trying to kill her during an argument over her erratic driving.

The messages, part of roughly 93,000 texts exchanged between the couple, show Shirilla sending graphic and disturbing statements, including threats like “I’m gonna kill someone” and “I just want to bang my head on the wall till I’m dead.” In one exchange, she claimed Russo was putting her life in danger.

Russo, for his part, had expressed fear for his safety in prior incidents. Two weeks before the crash, he contacted his mother asking for help after Shirilla allegedly drove dangerously during an attempted breakup. A family friend who intervened reported hearing Shirilla threaten to wreck the car.

Shirilla has maintained her innocence, claiming the crash was caused by a medical episode or blackout. However, prosecutors presented black box data from the vehicle showing she was accelerating at full throttle with no braking, along with evidence of a “dry run” on the same route days earlier.

In August 2023, Shirilla was sentenced to two concurrent terms of 15 years to life in prison. She is currently incarcerated at the Ohio Reformatory for Women in Marysville and will not be eligible for parole until 2037. Her appeals have so far been unsuccessful.

The case has regained national attention following the release of the Netflix documentary The Crash, which explores the tragedy and features interviews with Shirilla’s family, who continue to assert her innocence.

The newly resurfaced texts have reignited public debate about the couple’s tumultuous four-year relationship, which began when Shirilla was 13 and Russo was 16. Friends and family described it as marked by frequent breakups, threats, and emotional volatility.