Investigators are also examining a possible connection between last weekend’s attack, which killed two and injured nine others, and the killing of an M.I.T. professor earlier this week.

Rhode Island Attorney General Peter Neronha said that there is “no information that the investigative team has about motive.” Here's how Tuesday unfolded.

Authorities identified a person of interest in the Brown University shooting that killed two students and wounded nine, CBS News reported.

Two killed, nine injured in Brown University shooting as $1 million crime center lacked campus access. Mukhammad Aziz Umurzokov and Ella Cook died in the attack.

The alleged father and son gunmen who killed at least 15 people in a mass shooting at Australia's Bondi Beach may have been inspired by the ISIS terrorist organization.

A woman was killed, and four men were injured in a mass shooting in East Baltimore on Monday night, according to police. An officer was in the area of Belair Road and Mayfield Avenue around 10:50 p.m. when he heard gunshots. He responded to the scene to find two men, ages 20 and 24, suffering from non-life-threatening gunshot wounds, police said.

Former FBI agents criticize the Brown University shooting investigation, saying it 'defines credulity' that officials are holding press conferences without updates.