Jack O'Malley

Jack O'Malley is a police officer in Deus Ex: Human Revolution. He is involved in the Cloak & Daggers sidequest.

Background
O'Malley is a corrupt policeman. Suspected by DCPD's Internal Affairs of dealing with criminals, he is in reality a FEMA operative, under orders to incite a gang war between the Derelict Row Ballers and the Motor City Bangers to shift the attention from the Agency's prison camp in Highland Park, an area towards which the gangs started to expand.

While helping Jenny Alexander to find incriminating evidence on O'Malley, Adam Jensen poses as a hitman to get information from him. O'Malley reveals that his plan is to use the hitman to kill Double-T, a member of the MCB gang and a witness of O'Malley's shady dealings, and then plant the muder weapon in a stash in Derelict Row, which would effectively start a gang war and shift the gangs' attention from expanding into Highland Park.

Once Jensen dug up enough information on him, Jenny asks him to arrest O'Malley personally, at which point he can either be knocked out as Alexander asks, killed outright, or Adam can listen to his proposition and accept a bribe for letting him go free.