KELSO, Wash. — An Oregon teen has been arrested in connection with an alleged mass shooting plot targeting the Three Rivers Mall in Kelso, in southwestern Washington, officials said.

Investigators say the teen was planning to set off a chlorine bomb in the Three Rivers Crossing mall and then shoot people as ...

An Oregon teen has been arrested in connection with an alleged mass shooting plot targeting the Three Rivers Mall in Kelso, in southwestern Washington, officials said.

Teen arrested in alleged mass shooting plot at a Washington state mall, officials say Beginning of dialog window. Escape will cancel and close the window.

By Hanna Park, Rebekah Riess, CNN (CNN) — An Oregon teen has been arrested in connection with an alleged mass shooting plot targeting the Three Rivers Mall in Kelso, in southwestern Washington ...