Roid Rage (2004)
From "'Roid Rage" by Andrew Tabor (from Salon):
Steroids can also flick switches in the user's mind, altering personalities and inciting overly aggressive behavior, commonly called "'roid rage." Diane Williams says she was sexually voracious during her steroid cycles; professor Todd says that steroids can act as a triggering mechanism for violent behavior. Last year, a Sports Illustrated article reported on the unusual number of bodybuilders behind bars for homicide: Bertil Fox, a former Mr. Universe, is incarcerated for the murders of his girlfriend and his girlfriend's mother. California bodybuilder John Riccardi awaits execution for a double homicide. Another California muscleman, Gordon Kimbrough, is serving 27 years to life for the murder of his fiancée. A female strength prodigy, Sally McNeil, is serving a life sentence for the murder of her bodybuilder husband. The list continues; while Todd cautions against classifying all bodybuilders as pathologically prone, no other sport comes close to paralleling bodybuilding's criminal record.
It's a safe bet that this guy's just a little too pumped.