A Florida gun shop owner has declared his business a “Muslim-free zone” after last week’s shooting rampage in Tennessee that left four Marines and a Navy sailor dead.

“I have a moral and legal responsibility to ensure the safety of all patriots in my community, and so effective immediately, I’m declaring Florida Gun Supply as a Muslim-free zone,” Andy Hallinan said in a video posted to his Inverness, Fla., gun shop’s Facebook page Saturday. “I will not arm and train those who wish to do harm to my fellow patriots.”

Investigators still haven’t nailed down the motive for the attacks on two military installations by Mohammod Abdulazeez, who was born in Kuwait but grew up mostly in Tennessee and was a naturalized U.S. citizen.

It’s unclear how Hallinan plans to enforce his prohibition on Muslims. 

Click here to read more from USA Today.