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…