Check the corpse; make sure hes dead. — Tom Clancy's Splinter Cell

Tom Clancy's Splinter Cell is a series of action-adventure stealth games, the first of which was released in 2002, and their tie-in novels that were endorsed by Tom Clancy. The series follows Sam Fisher, a highly trained agent of a fictional black-ops sub-division within the NSA, dubbed "Third Echelon", as he overcomes his adversaries. The games emphasize light and darkness as gameplay elements.