The sister of a construction worker who was stabbed and killed on Monday in what police are calling a spree of attacks in Manhattan is demanding justice for her brother — and urging city officials to do whatever it takes to keep the alleged perpetrator behind bars.

Rivera appeared in court wearing a white Tyvek jumpsuit and handcuffs and was silent with his head bowed for most of the proceeding.

A stabbing spree in Manhattan that left three dead yesterday has New York’s Democrats playing defense. Gov. Kathy Hochul and Mayor Eric Adams agreed that yesterday’s rampage — in which a mentally ill homeless man fatally stabbed three people at random,

A knife-wielding assailant killed two men and a woman during an hourslong, seemingly "unprovoked" stabbing spree through the streets of New York City on Monday, authorities said. The two slain men — attacked near 444 W.

Ramon Rivera, 51, was taken into custody after he was found with blood on his clothes and two kitchen knives, authorities said.