By Taylor Romine, Josh Campbell, Taylor Galgano, Danya Gainor, CNN (CNN) — Investigators are still searching for a man they say shot and killed four

Police have found the getaway car of a US military veteran who walked into a bar in the western state of Montana on Friday morning and fatally shot four people, but the gunman remains at large.

The search for the suspect, identified as Michael Paul Brown, continued into the weekend. Authorities have warned that he is armed and dangerous.