The demented laughter that rings out in the wake of the shot identifies the Catwoman's would-be assassin as the Joker.

She and Ethel burst into some truly demented laughter, giggling as their husbands grow understandably concerned.

Behind them Bill heard the sound of clanging steel, punc- tuated by demented laughter.

I felt demented laughter bubbling in the back of my throat and held it down.

Some of the other noises that came floating out were scary in the extreme, shrill shrieks and demented "gibbering laughter.

Franz lapses into demented laughter, claiming he is pleased that at least Mieze did not leave him as he had thought.

No sound of demented laughter echoed from its corridors.

At one point, Ms. Reitz required Mr. Baryshnikov to break into demented laughter.

In the distance they could hear screams, and cries of hysteria, and demented laughter.

Other screams answer Richard's scream - screams and mad, demented laughter.