Eugene Victor Tooms was a genetic mutant serial killer who was capable of squeezing his body through narrow gaps; his unique muscle and bone structures allowed for extreme elongation and contortion of his body. He also had an incredibly low metabolic rate, allowing him to slip into hibernation periods lasting thirty years at a time. Between these periods of hibernation, Tooms would feed on human livers; usually five livers were consumed by murdering random citizens and removing the organ from each victim with his bare hands. Tooms would typically hibernate at the same location, in a nest made of newspaper strips glued together with his own bile.