Prosecutors have unearthed an eerie new piece of evidence in the trial of ​Julio Acevedo, a driver who is charged with manslaughter in the hit-and-run crash that killed a Williamsburg couple and their unborn child in 2013: a bag of rats.

Acevedo faces life in prison after he allegedly rammed his BMW into the livery cab that was carrying Nachman Glauber and his pregnant wife, Raizel, newlyweds headed to the hospital to check on a complication regarding Raizel's pregnancy. Acevedo fled, but prosecutors have now revealed a bag of frozen rats found in the trunk of the car bearing Acevedo's fingerprints. The rats were apparently food for his pet boa constrictor.

“They recovered a bag that contained live frozen rats,” assistant district attorney Tim Gough said in his opening statement, according to the Post. “Four fingerprints from the bag of live frozen rats ca​​me back to this defendant.”

Acevedo has previously served time for manslaughter, and was arrested on a DWI only two weeks before he struck the livery cab. Investigators determined that he'd been traveling 69.1 miles per hour— more than twice the legal speed limit—at the time of the collision. He turned himself into police in Pennsylvania four days after the crash.

Because of his prior convictions, Acevedo faces life in prison if he's convicted of manslaughter or leaving the scene of an accident.