Montana authorities are searching for 45-year-old Army veteran Michael Brown, who they said shot and killed four people inside a bar next to his home. Nearly 2,000 miles away, police in Tennessee are searching for 28-year-old Austin Drummond,

Local, state and federal officials were searching for a 45-year-old man who is believed to be armed and dangerous.

A manhunt for Michael Paul Brown has been underway since Friday morning, when four people were shot and killed in the town of Anaconda.