A career criminal with more than 20 prior arrests allegedly stabbed a devoted father to death while he was walking to work in the Bronx, according to police and sources. George Ennin, 53, was just blocks away from his home around 2 p.m. on Monday when he was approached by 38-year-old Sean Jones — a complete stranger — who knifed him repeatedly outside of 3077 3rd Avenue in the Bronx, authorities said. Ennin was rushed by EMS to Lincoln Hospital where he died from his injuries.