U.S. attorney for Massachusetts details how investigators linked the Brown University shooting to the shooting of the MIT professor: “Investigators identified the vehicle that he had rented in Boston, and then drove to Rhode Island. And the vehicle was seen outside of Brown, and there was security footage that showed a person who resembled him.” “There was financial investigations that were going on in the background that linked him not only to that car, but also to the hotels that he had rented." “There is video footage of him entering an apartment building in the location of the professor's apartment. And then later that evening, he is seen about an hour later entering the storage unit wearing the same clothes that he had been seen wearing right after the murder.”