university of massachusetts, dartmouth campus, where dzhokhar tsarnaev went to college. they are looking for evidence to continue to build that case against him. meanwhile, learning about the cause of death for his old brotherer. the medical examiner's office says tamerlan tsarnaev died of gunshot wounds and blunt trauma as a result of the shootout with police and his brother running over him as well while trying to escape. nbc's katy tur in boston for us on this saturday afternoon. i understand in addition to the latest on the investigation that emotions continue to run strong there at that makeshift memorial? >> reporter: certainly running strong, saw people coming putting down more flowers, tying sneakers, seen tears and a lot of emotions surrounding what to do with tamerlan tsarnaev's body. he is at a funeral home in worcester, massachusetts, and there's some concern or debate about where he is going to be buried, a lot of cemeteries are refusing to have him.