A Dorchester man who admitted he was drunk when he took the life of a teenager waiting to cross the street with his bicycle was sentenced today to 12 years in state prison, the Suffolk County District Attorney's office reports.

Gregory McCoy, 27, pleaded guilty to manslaughter while operating under the influence, leaving the scene of a collision causing death, and leaving the scene of a collision causing injury for the death of Fritz Philogene, 18.

According to the DA's office: