THE BRONX - (AP) - Prosecutors say a parolee suspected of wieldingan ice pick in a series of New York City robberies threatened tostab the toddler son of one of his victims.

John Martinez was being held on $750,000 cash bail after hisarraignment early Thursday in Manhattan. His lawyer didn'timmediately return a call.

Martinez was arrested on a parole-violation warrant Saturday inCliffside Park, N.J. Authorities said he was a person of interestin six stickups in elevators in buildings in Manhattan and theBronx.

He was charged Thursday with three muggings in a Manhattanapartment complex. A court complaint says he threatened to stab the3-year-old with an ice pick during a Dec. 2 robbery.

Bronx prosecutors are still investigating the incidents there.

Police make arrest in ice-pick robberiesPolice search for suspect in ice pick robberies