Clive Yorkin was a career criminal that would have spent his life in jail until he volunteered for a prison experiment. The experiment went wrong driving Clive insane and giving the ability of a death touch. He was believed to have killed Iris West, proved to be innocent, it was later confirmed it was the Reverse Flash.
Major Story Arcs
The Secret of Barry Allen
More information see: Flash: The Secret of Barry Allen
While visiting Iron Heights, Doctor Ashley Zolomon sees Clive Yorkin locked up.
For more information see: Identity Crisis