Hunter Zolomon, better known as Zoom, is Wally West's archnemesis. Once a close confidant and colleague of West in both his day job as a forensic analyst and in superheroics, Zolomon became obsessed with tragedy and understanding the criminal mind after his father killed his mother along with six other women. When an attack by Gorilla Grodd left Zolomon paralyzed from the waste down, West refused to use the Cosmic Treadmill to stop the events leading up to Zolomon's paralysis due the instability it would create in the space-time continuum. Undeterred, Zolomon broke into the Flash Museum and tried to use the Treadmill himself, destroying it along with the Museum in a catastrophic explosion.