(CNN) -- A Texas district attorney vowed Thursday to catch the "scum" who gunned down one of his assistant prosecutors outside ... attorney's office in Dallas County, Laney said. The courthouse ...

Federal officers fatally shoot alleged gunman outside federal courthouse. A gunman who appeared ... Earle Cabell Federal Building in Downtown Dallas, Texas," the New York Police Department ...

A masked gunman opened fire Monday on a federal courthouse in ... by federal officials. The Dallas Morning News reported that one of its photographers, Tom Fox, was outside the building and ...

An Army veteran wearing a mask and carrying more than 150 rounds of ammunition for his high-powered rifle was shot dead Monday after he opened fire outside a busy federal courthouse in downtown ...

DALLAS — A masked gunman opened fire Monday on a federal courthouse in downtown Dallas before being fatally shot in an exchange of gunfire with federal officers, witnesses and authorities said.

DALLAS (AP) — A masked 22-year-old man was killed in an exchange of gunfire with federal officers outside a federal courthouse in downtown Dallas Monday morning, an FBI official said. FBI ...