A violent “group of juveniles” allegedly chased a Philadelphia college student across campus and into a residence hall before beating him in a vicious, caught-on-video attack. The assault happened at around 2:50 a.m. Sunday at Temple University, when the teens chased the student into the Morgan Hall South dorm, according to the Temple University Police Department. “Once inside, the group struck the student and damaged university property,” police said. A group of at least nine…