The Crown Heights riot began on August 19, 1991, after a car driven by a Jewish man, and part of a procession led by an unmarked police car, went through an intersection and was struck by another vehicle causing it to veer onto the sidewalk where it accidentally struck and killed a seven-year-old Guyanese boy named Gavin Cato and severely injured his cousin Angela. Witnesses could not agree upon the speed and could not agree whether the light was yellow or red. One of the factors that sparked the riot was the arrival of a private ambulance, which was later discovered to be on the orders of a police officer who was worried for the Jewish driver's safety, removed him from the scene while Cato lay pinned under his car. After being removed from under the car, Cato and his cousin were treated soon after by a city ambulance. Caribbean-American and African-American residents of the neighborhood rioted for four consecutive days fueled by rumors that the private ambulance had refused to treat Cato. During the riot black youths looted stores, beat Jews in the street, and clashed with groups of Jews, hurling rocks and bottles at one another after Yankel Rosenbaum, a visiting student from Australia, was stabbed and killed by a member of a mob while some chanted "Kill the Jew", and "get the Jews out".