Metro

‘Serial killer’ dressed down by judge

The wheels are falling off this madman’s defense.

Accused Brooklyn serial killer Sal Perrone — who is defending himself in court — was ripped by a judge on Friday when he walked in with broken eyeglasses, a wet stain on his shirt and a clear garbage bag full of his papers and asked for help from the court.

“If you want to represent yourself you need to hitch up your pants and follow up on these matters yourself,” Judge Alan Marrus told him.

“I cannot help you prepare your defense.”

Perrone repeatedly demanded the judge help him get cellphone maps he claims will clear his name.

“What I continually ask for is a cell site map that will prove I was somewhere else. That is my alibi. I need to prove that,” said Perrone, who is accused of fatally shooting three Brooklyn shopkeepers in separate 2012 attacks.

The family of his second victim shook their heads disgustedly when Perrone spoke, but smiled when the judge repeated, “As I said, hitch up your pants and represent yourself.”