A second teenager has pleaded guilty to manslaughter in the death of another teen. 17-year old Lorenzo Santana accepted a plea deal in court yesterday. He will be sentenced to 4 to 15 years in prison for the death of Gabe Bardo. 17-year old Bardo was delivering pot to a friend when he was jumped by four teens on Abbott Street. Prosecutors said Santana delivered the fatal blow to the head. Ronald Massagli pleaded guilty last month to manslaughter after accepting the same deal. Two other teens have been charged as juveniles in connection to the crime.