Gunman who killed Arvada officer “warped” by anti-police YouTube videos, documents state
The gunman who ambushed and killed an Arvada police officer in June planned an attack
Gunman
Maryland newspaper gunman gets more than 5 life prison terms The Denver Post
ANNAPOLIS, Md. — A man who killed five people at a newspaper in Maryland was
Vienna terror attack: Gunman posted photo of himself with his weapons on social media before rampage
A gunman who killed four people in Vienna posted a photo of himself on social
Gunman kills son and wounds husband of US judge
The son of a US federal judge has been shot dead and her husband injured