Georgia ? A man who told authorities “My whole family’s dead!” in a frantic 911 call was charged Friday with killing the eight people attacked in his family’s mobile home in coastal Georgia.

Guy Heinze Jr., 22, was arrested Friday on eight counts of first-degree murder in the slayings last weekend at a mobile home park a few miles north of Brunswick, a port city midway between Savannah and Jacksonville, Fla. Among those killed were seven of Heinze’s relatives.

Glynn County Police Chief Matt Doering would not say what evidence led police to charge Heinze. The suspect was returned to the county jail Friday less than two hours after his release on bond on lesser charges.

The chief also declined to say whether police think Heinze acted alone or with others.

Doering said he wasn’t sure Heinze was responsible for the deaths until late Friday afternoon when two new pieces of evidence became available, but he wouldn’t say what they were.