Police are looking for Michael Paul Brown, 45, after four people were shot and killed in The Owl Bar in the small town of Anaconda, Montana.

As the search for Michael Brown enters its sixth day, a local outdoor expert describes the challenging wilderness terrain that's complicating the manhunt for the suspect in the Anaconda bar shooting.

Authorities say there are signs Michael Paul Brown has been in a mountainous area since he allegedly shot and killed four people in an Anaconda bar on Friday.