Mackenzie Shirilla is facing renewed public scrutiny after a former inmate claimed the convicted killer showed little remorse while serving time in prison.

The allegations surfaced following the release of Netflix’s The Crash, the documentary examining the 2022 high-speed crash that killed Shirilla’s boyfriend, Dominic Russo, and family friend Davion Flanagan.

Kat Crowder, who says she spent six months incarcerated alongside Shirilla at the Ohio Reformatory for Women, told NewsNation she was shocked by the emotional image Shirilla presented in the documentary compared to how she allegedly behaved in prison.

“From my observations, there was never any behaviors that looked like somebody who was remorseful,” Crowder claimed during the interview.

According to Crowder, Shirilla carried herself with confidence and maintained what she described as a “light demeanor” while behind bars, despite serving a sentence connected to the deaths of two young men.

Crowder also compared Shirilla to Regina George, saying she appeared focused on makeup, appearance and popularity rather than reflecting remorse over the deadly crash.

The comments arrive as renewed interest in the case explodes online following the May release of The Crash on Netflix.

Shirilla, now 21, is currently serving two concurrent sentences of 15 years to life after being convicted of murder, vehicular homicide and related charges tied to the July 2022 crash in Strongsville, Ohio.

Prosecutors argued during trial that Shirilla intentionally drove her car into a brick wall at nearly 100 mph following problems in her relationship with Russo. The judge famously described her as “literal hell on wheels” while delivering the verdict.

Shirilla and her family have consistently denied the allegations, maintaining that the crash was caused by a medical emergency rather than intentional actions.

Additional controversy surrounding the case recently emerged after jail calls obtained by PEOPLE revealed Shirilla telling her mother she did not believe she needed rehabilitation.

In the recordings, she expressed concerns about her future and prison life, while also suggesting she did not see herself as someone who needed to be “rehabilitated” like “actual criminals.”

Shirilla will become eligible for parole in 2037.