Mackenzie Shirilla was slammed by the sister of her late boyfriend, Dominic Russo, after sharing a new selfie taken in prison. Christine Russo told TMZ that seeing Shirilla, 21, post a photo from behind bars is "heartbreaking" while her family is "suffering every day." Christine stated that seeing Shirilla "post selfies, full face of makeup, and bragging how she is famous is painful and, to me, completely inconsistent with remorse." She also called for prison officials to investigate whether Shirilla is improperly accessing social media. Shirilla was found guilty of multiple charges, including four counts of murder, in the 2022 deaths of Russo and Davion Flanagan. The pair died after they were passengers in Shirilla's car when she drove into a brick wall at 100 mph. She was sentenced to two consecutive terms of 15 years to life in prison and is not eligible for parole until September 2037. Shirilla has maintained her innocence, insisting she did not intentionally kill the two men.