Police say a man believed to be a Florida State University student opened fire on campus, killing two people and wounding at least six others before he was shot and wounded by responding officers.

The masked gunman who stalked and killed UnitedHealthcare CEO Brian Thompson outside a Manhattan hotel used ammunition emblazoned with the words “deny,” “defend” and “depose,” a law enforcement official said Thursday.

A federal agent shot and killed by an Amtrak train passenger in Arizona is being remembered as a revered leader with a career spanning almost two decades.