Officer Leonard Snart - Justice League

The partner of Mick Rory, Officer Leonard Snart of the C.C.P.D Specialised Crime Unit was part of a task force dedicated to capturing the serial killers "Johnny & Ronny", aka Jonathan Allen and Rhonda Pineda. 

After months of senseless bloodshed and destruction, they finally capture Jonathan Allen. While Rory wants to execute Allen then and there, he is talked out of it by Snart, who wants to take them back to Iron Heights and kill Allen and Pineda slowly, making them pay for their fallen friends and comrades who had died at the killers' hands. However, before they can reach their destination, they are run off the road by Pineda in a stolen garbage truck. 

Coming to hours later, Snart finds both himself and Rory tied up in the basement of the abandoned S.T.A.R. Labs building. Unable to break free of his restraints, Pineda tells the two officers that only one of them will survive the night, threatening to kill their families if they do not fight to the death. 

Seeing through her lies, Leonard tries desperately to dissuade Mick from engaging in their cheap little games. However, his pleas are ignored, and he is beaten to death by his partner. 

His death triggered a tracking device, alerting his fellow C.C.P.D offers to Allen and Pineda's location.