Ramon Rivera, 51, has been charged with three counts of first-degree murder following a stabbing spree in Manhattan that resulted in the deaths of three victims. The attacks, described as unprovoked, occurred within a two and a half hour window, with victims being approached and stabbed without any interaction. Mayor Eric Adams condemned systemic failures that allowed Rivera to be free despite a history of criminal behavior. Rivera, who was recently released from jail and had multiple prior arrests, is now under scrutiny as investigators seek to ascertain the motives behind the violence.