A 76-year-old Bronx man shot his 21-year-old neighbor to death after a feud that lasted for years, police and sources said.
Gilbert Smalls was arrested after he copped Friday to killing his barely drinking-age neighbor Justin Chatfield in their Morris Heights apartment building, cops and sources said.
The alleged confession came after NYPD officers knocked on the Senior Citizen’s door while canvassing for video footage in their probe into the fatal shooting Thursday, sources said.
Small ended spilling that he was the shooter, the sources revealed…