Brock Lesnar's Vitamins

In January 2001, Louisville Police detectives arrested then-WWE champion Brock Lesnar for illegal possession of steroids. Official reports stated that the 26-year-old athlete allegedly received and opened a parcel that authorities said contained a "large amount of steroids."

I wonder what gave it away?

Postscript: Charges were later dismissed when tests determined that the seized pills were not steroids. Lesnar's attorney asserted the pills were a type of vitamin.

I need me some o' them "vitamins".