Missing: Police searching for 21-year-old Marietta man

Marietta Police are searching for Angelo Messineo, 21, after he was last seen on Sunday evening. 

Messineo was last spotted at his residence, 1521 Evanston Court in Marietta. Police say he could become agitated and start clapping his hands loudly.

Also, he may not remember numbers or the way back to his home. 

Anyone with any information on Messineo's whereabouts should call 911 immediately.