Multiple people are dead after Jacksonville mass shooting

JACKSONVILLE, Fla. — A gunman opened fire Sunday during an online video game tournament that was being livestreamed from a Florida mall, killing multiple people and sending many others to hospitals, authorities said.A source close to the investigation told the Associated Press the shooting has left at least four people dead.The source says the person who opened fire died from a self-inflicted gunshot wound. The source spoke to The Associated Press on condition of anonymity because he wasn'