Four people were injured and a cat was killed after a “roach bomb” led to an explosion at a high-rise apartment building in Brooklyn Thursday afternoon, fire officials say. The blast blew out four large windows of a second-floor, corner apartment at the building in Brownsville. Firefighters rushed to the scene on Hegeman Avenue shortly after 1 p.m. Tyrone McClean said he felt the building shake and heard a loud bang. Some residents said they felt a rumbled from more than a dozen stories above the blast. Andre Chandler said he noticed a "subtle shake" for about 10 seconds. "And I'm on the 16th floor and on the opposite side (of the building)," he said.