Police, FBI, ATF launch investigation into Florida man's cop killing FB post

Daytona Beach police, the FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives are conducting a joint investigation into a Facebook post.

Officials say the post could be fake, but Chief Mike Chitwood said he received more than 500 emails about the threats.

"We have opened a joint investigation with the FBI, the ATF and the border patrol to try and see who is behind these postings," Chitwood said.

The post, belonging to Jammal Longmire, calls for people to pick up guns and kill police officers, police said.

Police said the man in the picture is holding two assault rifles.

"Is this really an attack on the officers? Is this person on that Facebook really who they say they are? So that's what the investigation is trying to show out," Chitwood said.

Officials said there are three posts on Longmire's page that, real or not, have forced Chitwood to place all his officers on high alert.

"Look what happened in New York City," Chitwood said. "I mean, you have a guy coming from Atlanta that is a little unstable, gets his hand on a couple guns, doesn't have anything to lose, so I'm just going to go up and assassinate two police officers."

Authorities said Facebook has been served a warrant for the address of the device used to make the threats.

Investigators say the profile claims to be from Daytona Beach and Detroit, but they are waiting for a response from Facebook.