Third victim of knife-wielding lunatic dies as attacker confesses to grisly NYC stabbing spree: sources

The third victim of the knife-wielding maniac who left a bloody trail across Manhattan in a broad-daylight stabbing spree Monday has died of her injuries as the brute confessed to the random killings, sources said.The 36-year-old woman — the alleged third and final victim of 51-year-old Ramon Rivera — succumbed to her injuries in the hospital Monday evening, sources told The Post.A 36-year-old male construction worker and a 68-year-old man who was fishing in the East River were also killed in separate stabbings throughout Manhattan, police said.Rivera, a homeless man with an extensive criminal record and reported mental health ailments, allegedly confessed to the unprovoked stabbings that began in the morning and crossed the full width of the borough.This is a developing story.Check back for more updates....