Early this morning, local media reported that five youths were arrested for the seven assaults last Sunday. From the Daily News:

nypdInvestigators captured four of the suspects Wednesday after a 17-year-old picked up on Tuesday ratted out his pals, sources said.

The public also helped out by phoning in tips after police released video of the hoods walking around the Ivy League school’s campus in Morningside Heights.

Columbia University surveillance cameras recorded a giggling group of seven youths punching and shoving seven adults during a 20-minute spree early Sunday. Two victims needed stitches.

Plus, WNBC names names.