The suspect in last weekend's mass shooting at Brown University was identified as a 48-year-old former graduate student who had studied at the school some 25 years ago.

Axar.az informs, citing ABC news, during a news conference Thursday, authorities identified the suspect as Claudio Manuel Neves Valente and said he took his own life.

Authorities said Valente is also believed to be the killer of MIT professor Nuno F.G. Loureiro in Brookline, Massachusetts, who was gunned down at his home two days after the attack at the university.

An FBI official told reporters it's believed Valente and the MIT professor attended the same university in Portugal.

Law enforcement sources told ABC News that the suspect was found dead inside a storage facility in Salem, New Hampshire, on Thursday night on the fifth day of a massive manhunt.

On Saturday afternoon, two Brown students were killed and nine others were wounded when the gunman burst into a first-floor classroom and opened fire before fleeing the scene, sparking a massive manhunt that stretched on for days.

On Monday night, the MIT professor, also a native of Portugal, was found shot at his home in the upscale Boston suburb of Brookline, officials said. Loureiro, 47, died on Tuesday at the hospital.