One of Us Is the Killer is the fifth studio album by American mathcore band The Dillinger Escape Plan, released on May 14, 2013. One of Us Is the Killer is the band's second release under their Party Smasher, Inc. imprint. The CD was released as a standard version that can be picked up at most record stores, and a limited version with a scratch-off cover that can only be bought at Best Buy containing two bonus tracks.