A provocative dating app designed to let women anonymously ask or warn each other about men they'd encountered rocketed to the top spot on the U.S. Apple App Store last week.

PALM HARBOR, Fla. – A Florida man is now facing a manslaughter charge after he pointed what he thought was an unloaded rifle at his friend and shot him in the chest, police said. The friends had been playing video games at Harkins' house, the Tampa Bay Times reported. Harkins, 26, told deputies he pointed the gun at his friend as a joke, officials said. He told investigators that Cook said, “What are you going to do, shoot me?”He pulled the trigger, thinking the rifle was unloaded. Investigators arrested Harkins was arrested, and remained in the Pinellas County Jail on Friday morning.