Homeless New York City suspect seen preparing for deadly stabbing spree

Ramon Rivera, who faces three charges of first-degree serial murder, is seen putting on gloves and preparing a knife in November 18 surveillance footage captured before he allegedly killed three people in New York City.

Ramon Rivera, who faces three charges of first-degree serial murder, is seen putting on gloves and preparing a knife in November 18 surveillance footage captured before he indiscriminately killed two men and injured a woman.