The Atomwaffen Division is a name you should remember. It means atomic weapons in German, but it’s known to law enforcement as a relatively new neo-Nazi hate group that’s been connected to at least five murders in the United States. The investigative reporters at ProPublica have obtained six months worth of chat room messages from the group that “offer a rare window into Atomwaffen Division that goes well beyond what has surfaced elsewhere about a group whose members have been implicated in a string of violent crimes.” Please watch the video above and read their investigation here as the group celebrates a murder through their online chatrooms.