The man identified by law enforcement as the shooter who killed two Brown University students and an MIT professor had been planning the attack for at least six semesters, according to information released on Tuesday by the US Department of Justice.
Claudio Neves Valente, 48, a former Brown student and Portuguese national, was found dead in a New Hampshire storage facility after he killed two students and wounded nine others in an engineering building on December 13.
He also killed MIT professor…
Brown University shooter left video confession, says he planned attack for months
