Dallas police officers killed by sniper fire during protest.

Cops across US on high alert after threats

Dallas sniper reportedly was readying larger attack

Homeland Security secretary says Dallas gunman acted alone

Mass shootings send ripple through Capitol Hill.

Suspect shooting spree allegedly angered by African-American deaths

An attorney for a suburban Minneapolis police officer who killed a black motorist says the officer reacted…

Multiple gunshots were fired at the San Antonio Police headquarters building Saturday night, and police…

Dallas sniper reportedly was readying larger attack. The Police Department is dedicated to serving the…

Sheriff’s deputy wounded, suspect dead after standoff