adjective

culpable of or responsible for a specified wrongdoing.

he was found guilty of manslaughter

culpable,to blame,blameworthy,blameable,at fault,in the wrong,responsible,answerable,accountable,liable,censurable,reproachable,condemnable,reprehensible,erring,errant,delinquent,offending,sinful,felonious,iniquitous,criminal,convicted,peccant