Online speculation erupts after MIT nuclear scientist Nuno Loureiro is shot dead at home. Here is what is known, what police say, and why the internet is questioning the timing and motive.

The professor, Nuno F.G. Loureiro, was pronounced dead at a hospital on Tuesday morning. The authorities said they had opened a homicide investigation.

Shock and grief are rippling through the Boston-area academic world after an acclaimed Massachusetts Institute of Technology physicist was shot

Nuno F.G. Loureiro — a science, physics and engineering professor who joined MIT in 2016 — was shot multiple times Monday night, and died the following day

Investigators found evidence linking deadly shootings at Brown University and MIT, as authorities probe connection between campus attacks, according to a report.

Officials have identified the man who was shot to death in his Brookline home. According to police, around 8:33 p.m., officers responded to 9 Gibbs Street for reports of gunshots. Upon arrival, they discovered Nuno F.G. Loureiro, 47, who had been shot multiple times in the foyer.

A man is dead after a shooting Monday night in Brookline, Massachusetts, according to police. The incident happened at his home on Gibbs Street. The victim, Nuno F.G. Loureiro, 47, was taken to an area hospital with apparent gunshot wounds and died Tuesday morning, according to the Norfolk County District Attorney’s Office.