A deplorable video showing Mackenzie Shirilla mourning her boyfriend after she killed him was posted to her private Instagram account — and then deleted minutes later.

Shirilla, 22, is serving two concurrent 15-years-to-life sentences for the killing of Dominic Russo, 20 and a mutual friend, Davison Flanagan, 18, after slamming her car into a brick wall at more than 100 mph on July 31, 2022, and killing them both on impact.

Shirilla has been slammed for showing no remorse for the murders.

Footage depicts the convicted killer crying and laying flowers at Russo’s grave while wearing a neckbrace shortly after the crash — as an AI-generated voiceover says the public thinks “that Mackenzie Shirilla showed no remorse and no sadness after the car accident.”

“But they definitely lied about that,” the narration continues. 

Another portion of the video shows Shirilla pouring beer into a glass with the caption “sippin 4 you.”

A still frame photo also depicts her smelling a shirt with the caption, “I found one of his shirts. It smells just like him,” referring to her dead boyfriend.

The video was deleted about 20 minutes after it was posted to social media. 

Shirilla’s Instagram account is believed to be controlled by her parents. 

The deadly driver repeatedly asked her mother from jail to change her Instagram bio to “#freekenzie” — and the voiceover video was most likely posted with Shirilla’s consent.

Many prisoners at the Ohio Reformatory for Women, where Shirilla is behind bars, keep scrapbooks which they typically fill with photos of loved ones.

However, a woman who was in a relationship with Shirilla, said she only had photos of herself and a clipped photo of a brick wall with the word “BOOM” inscribed on it.

“She didn’t have any pictures of Dom or Davion,” the former lover, who goes by the name Anastasia, told the Daily Mail. 

“I feel like that was cold.”

Shirilla’s parents, meanwhile, claim their daughter is innocent. 

She will not face the possibility of parole until 2037.