Mackenzie Shirilla's alleged former girlfriend alleged that their relationship was based on lies, and she was threatened after their split.
Netflix's The Crash brought the highly publicised Ohio criminal case of Mackenzie Shirilla, a 17-year-old (now 21) back to the discussions. She was convicted of dual murder after intentionally slamming her car into a brick building at 100 mph, killing her boyfriend, Dominic Russo and his friend, Davion Flanagan. Notably, she maintained that the crash was just an accident; however, she was convicted of the crime and might even face a lifetime imprisonment. Recently, one of her jail inmates, claiming to be her ex, made some explosive allegations against her.
A woman named Shyann Topping, who served time with Mackenzie Shirilla at the Ohio Reformatory for Women and claimed to be her ex, told PEOPLE that she and the subject of The Crash initially shared a strong bond. Shyann recalled noticing her right away after she was transferred to the jail. Both were allegedly attracted to each other, and their relationship began when Shyann gave her a small compliment. Recalling their first meeting and interaction, she told PEOPLE:
"I walked up to her [Mackenzie Shirilla] and said, 'You look good.'"
Shortly after, Mackenzie and Shyann allegedly started dating, and the latter got used to having the former around, as according to her, "two weeks in prison feels like two months." She added, "All you're doing is seeing the same people every single day, 24 hours a day." Mackenzie and Shyann bonded quickly and The Crash's subject wanted to get intimate with her by the second or third day of their relationship. Shyann recalled Mackenzie taking her by surprise as she asked her:
"Why aren't you touching me? I want you to be all over me. I want you to be out here for everyone in the yard to see me."
Shyann Topping told PEOPLE that she initially sympathised with Mackenzie upon hearing her version of the car crash that claimed the lives of her boyfriend and his friend. However, later, when she learned what actually happened, she called it quits with Mackenzie. In mid-2025, Shyann posted a series of videos on her TikTok account to share her side of the story and announce the end of her relationship with The Crash's subject. Immediately after her first TikTok video went live on August 12, 2025, she began receiving anonymous threatening text messages and faced online harassment.
Several of the messages included Shyann's home address and her mother's legal name. She was scared to know that the bullies had access to such personal information regarding her. The texts were allegedly so aggressive that she feared for her safety and completely stopped posting on social media for months. She told PEOPLE that she strongly suspects the texts were from inmates who were locked up in prison alongside Mackenzie at that time. Shyann remained silent until May 2026, when she began posting updates again following the release of The Crash. Recalling the scary experience, Shyann said:
"It was crazy because after I found out [the details] of her case and we stopped talking to each other, and it fizzled out, people started texting me and saying crazy stuff to me."
Mary Katherine Crowder, a 27-year-old former cellmate of Mackenzie, told the New York Post that The Crash's subject thought of herself as the "queen bee of Mean Girls". The former cellmate alleged that Mackenzie Shirilla has had multiple girlfriends and frequently displayed hickeys while serving her time behind bars. According to Mary's revelation, Mackenzie dolled up in cute outfits and makeup and slept with multiple inmates.
What are your thoughts on Mackenzie Shirilla's former cellmates' explosive claims regarding her? Let us know.
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