David McCarthy

"This man right here, his name is Clyde, lovely feller!"
 * ―David McCarthy to William Walker

David McCarthy is a former soldier and the brother of Riley McCarthy. He was the leader of Operation House and was sent to Boston Asylum to be silenced.

Fight at the Cafeteria
Otis was walking with his tray when David McCarthy ran into him and spilled his coffee on his arms. He starts to fight with McCarthy until Jeremy and Franklin come into the room and beat them both with sticks. It is later revealed that Otis died of his wounds at the asylum clinic.

Escape from his Cell
Jonathan comes into the room to check on David McCarthy and David strangles him to death with a shoelace. He takes the keycard off of Jonathan's body and frees his brother Riley and Joseph Chambers.

Shootout at Asylum Grounds
David and Riley McCarthy escape through a main door to distract the guards while Joseph Chambers and Scott Gray prepare an escape vehicle but Chambers and Gray are chased too. Clyde starts chasing David but is shot and killed by William Walker. Walker kills one more guard that is chasing Chambers and Gray but is killed by Jeremy after that. After losing contact with Walker David and Riley make a run for it.