Motive a mystery in fatal California school shooting

The 16-year-old shooter, who killed 2 students and wounded 3 other before turning the gun on himself, died Friday, authorities say.

California school shooting suspect described as quiet, smart

People who knew the 16-year-old boy suspected of killing 2 students and wounding 3 others say he wasn’t bullied, had a girlfriend and had been an active member of a local Boy Scout troop.

California high school student kills 2 teens, wounds 3, then shoots himself

Authorities say the suspect, who is in critical condition, opened fire with a .45-caliber handgun at a Santa Clarita school in Los Angeles County. It was his 16th birthday.

Commentary: What we keep getting wrong about mass shootings

Bill Nemitz: The good news: A mass shooting didn’t happen in Maine last week

How can we head off the threat of a mass shooting? Police in Maine, alerted by a woman in New York, just did.