Claudio Neves Valente, a former Brown University student, meticulously planned the fatal shootings of two students and an MIT professor over six semesters, according to U.S. Department of Justice officials. Valente, 48, a Portuguese national, was found dead from a self-inflicted gunshot wound in a New Hampshire storage facility. Recovered video recordings show Valente admitting to the long-term planning, expressing no remorse, and stating he wanted to leave on his own terms. No specific motive for the attacks has been provided.