Anabolic steroids can create astounding changes in even the most gentle personality. San Francisco bodybuilder Gordon Kimbrough was a perfect example. Family members described him as a shy, quiet man who wouldn’t hurt a fly before he started cycling on growth hormone to increase the size and definition of his muscles. The artificial hormones turned him into a very different person, though, and in 1993 he snapped and murdered his fiancée, Kristy Ramsay, in a fit of passion because he thought she’d found another man. Police found him the next day at the scene trying to inject enough Lysol into his neck to kill himself.