Patrick, patrol and explosive detection/military working dog, latches onto Staff Sgt. Kristopher Knight, military policeman and dog handler with Military Working Dog Platoon, Battalion Headquarters Group, 2nd Marine Expeditionary Brigade, June 18. Knight, who was acting as a decoy and Patrick's handler, Lance Cpl. Dante Brown, were training to improve the dog's basic aggression. Knight is a Indian Hill High School graduate from Cincinnati, and Brown is a Valdosta High School graduate from Valdosta, Ga.