Stranger fatally stabs NYC man during broad-daylight fight over seat on MTA bus: cops

A stranger stabbed a 41-year-old man to death in broad-daylight during a fight over a seat on an MTA shuttle bus, cops and sources said. Alvin Francis was riding a shuttle bus along the J train route just before 2 p.m.Sunday at Crescent and Etna Streets in Cypress Hills in Brooklyn when a feud erupted between him and a backpack-wearing passenger over seating, cops and sources said.The enraged rider then knifed Francis in the stomach, police and sources said. The victim was rushed to Brookdale University Hospital Medical Center, where he succumbed to his injuries, cops said.He lived several miles from where he was stabbed, in Jamaica, Queens, authorities said. The unhinged attacker — who was still at large Monday — was last seen wearing a gray sweat suit, police said....