The Brown University gunman is also responsible for the murder of MIT professor Nuno Loureiro on Monday, officials said on Thursday night, confirming earlier speculations.

The shooter was found dead of an apparent self-inflicted gunshot wound earlier on Thursday, law enforcement officials confirmed.

Authorities have identified the suspect as Portuguese national Claudio Manuel Neves-Valente, 48. He was found dead of a self-inflicted gunshot wound in a New Hampshire storage facility.

Earlier on Thursday, CBS News reported that law enforcement authorities are examining whether there is a connection between the deadly mass shooting at Brown University and the targeted killing of Professor Loureiro.

Leah Foley, a US attorney for Massachusetts, detailed how investigators linked the Brown University shooting to the shooting of the 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,” said Foley.

She added, “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.”