A Silver Creek man was arrested late Tuesday and charged with possession of a destructive device in connection with a hand grenade found at a local convenience store in April, police said.

Investigator Jeff Jones identified the suspect as Richard Aubrey Garrett III, 34, of Silver Creek.

Jones said Garrett was already in the Floyd County Jail on an unrelated charge.

He said police still don’t know what allegedly prompted Garrett to put the device in a garbage can at the 4814 Alabama Highway Kangaroo.

Police officials responded to a call at the store after a clerk there found a suspected hand grenade.

The bomb squad was called in to collect the device, and further testing by the police has shown that it was a live device.

Floyd County Police Chief Bill Shiflett said the device was a grenade that had been drilled out and filled with blasting powder with a fuse coming out of the top and taped together.

The device was destroyed, he said