Two British tourists holidaying in Florida begged for their lives with their trousers pulled down before they were mercilessly shot dead, a court has heard. Shawn Tyson, who turned 17 on Monday, is said to have murdered James Cooper, 25, and James Kouzaris, 24, after they drunkenly stumbled into the rundown Newtown neighbourhood of Sarasota. He allegedly forced the terrified pair to pull down their trousers before firing a volley of shots. Accused: Shawn Tyson is on trial for the murders of British tourists James Cooper and James Kouzaris Tyson is accused of going to rob the best friends in...