demoniac

adj 1: in a murderous frenzy as if possessed by a demon; "the

soldier was completely amuck"; "berserk with grief";

"a berserk worker smashing windows" [syn: {amuck}, {amok},

{berserk}, {demoniacal}, {possessed(p)}]

2: resembling or suggesting possession by a demon; "demoniac

energy"; "a demoniacal fit" [syn: {demoniacal}]

n : someone who acts as if possessed by a demon