Stymied by treacherous terrain and untamed wilderness, authorities are struggling to find an Army veteran suspected of killing four people at a Montana bar. But the difficult landscape isn’t the only challenge.

Authorities in Western Montana are pleading for patience as the manhunt for a suspected gunman in a mass shooting that killed four people in Anaconda stretches into a fifth day. Omar Villafranca reports.

The shooting happened around 10:30 a.m. local time on Friday at The Owl Bar, according to the Montana Division of Criminal Investigation.