Kidney Cancer and High Adrenalin Work: Is there a correlation?

I was listening to Bob Mikell's story of recovery from Stage 4 Kidney Cancer (See: http://phiyakushi.com/miracles/2010/05/10/bob-mikell-stage-4-kidney-cancer/ ).  While sharing his remarkable story Bob, a former Narcotics Police Office, mentioned how his replacement, the person whom he trained to take over his job, later also developed the same cancer! …