Casimiro Barros, 23 and already an official "career criminal," faces life behind bars for his role in the death of the Kentucky woman in Dorchester on March 24, 2007.
Barros allegedly got into a gun battle with Manuel Andrade, 36, of Dorchester, outside a Geneva Avenue party where they had feuded. Levin, an innocent bystandar, was shot in the head. Andrade will be tried separately for murder. Prosecutors say Levin and friends met Andrade at a Tremont Street club and agreed to go with him to the after-hours party.
Barros is also charged with armed assault with intent to murder, aggravated assault and battery with a dangerous weapon and unlawful possession of a firearm.