A former marine killed 4 people, including a child. Here's what we know about the shooting

Four people -- a man, an infant and the child's mother and grandmother -- all lost their lives early Sunday morning in what a Florida sheriff called an "active shooter rampage" carried about by a former marine.

The shooting took place at a property outside Lakeland, Florida, and escalated when the suspect, outfitted in body armor, engaged in a firefight with law enforcement before surrendering to authorities. He later attempted to take a gun from an officer at a hospital, Polk County Sheriff Grady Judd said.