Dennis "D.J." Hernandez -- the older brother of Aaron Hernandez -- repeatedly asked cops to shoot him before he was arrested earlier this month ... new police video shows.
In the footage -- which was captured on Bristol Police Department body cameras on July 19 -- you can see D.J. left a residence with his arms in the air ... and urged cops who had surrounded him to fire on him.
More than four times, he told them "shoot me" ... and at one point, as he continued to walk toward the officers with what appeared to be water bottle in one of his hands, he shouted, "I'm not armed, but shoot me.