Videos captured the sounds of heavy gunfire during a deadly shootout in Jersey Citythat came after a police officer was killedTuesday afternoon.In the clips shared by reporters and bystanders on social media, numerous shots were heard along with members of a SWAT team rushing a person to safety. Another clip showed a group of plainclothes and uniformed law enforcement officers advancing toward the shooting scene at a Kosher supermarket, where authorities said attackers killed three people.The two shooters were killed, along with three people in the store, according to officials. Two other Jers...