Donovan Joshua Leigh Metayer, who was a senior at Marjory Stoneman Douglas High School when a shooter killed 17 people and injured 18 others, died by suicide Monday after what his family called a “years-long battle with schizophrenia.” He was 26.

A user on the social media site, who had an altercation with the suspect before the shooting, “blew this case wide open,” Rhode Island’s attorney general said.

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.

The father and son accused of carrying out Australia’s worst terror attack undertook firearms training at an undisclosed location in the countryside, according to an alleged statement of facts released by a magistrate Monday.

Mia Tretta, now 21, was a high school freshman at Saugus High School when a student shot five students and later himself. Her healing journey led to Brown University, where after last week’s

The hunt for the shooter that left two students dead and nine injured at one of the nation’s top universities stretches into a fifth day.

A week after gunmen killed 15 people at a Hanukkah celebration, hints of political divisions and anti-immigration rhetoric emerge in Australia.