The anxiety pulsing through this idyllic swath of Montana is palpable – from the armored SWAT vehicles to the locked down businesses to the neighbors sleeping next to their guns.

Authorities have expanded the search area for Michael Brown, the suspect in a mass shooting that killed four in Anaconda on August 1.

Many people in Anaconda have taken extra precautions in recognition that Michael Brown is on the lam and likely unstable.

As the search for 45-year-old Michael Brown closes in on one week, authorities are continuing their efforts to locate the ...

Authorities expand the search area for Michael Brown, the suspect in a mass shooting that killed four in Anaconda. Experts highlight challenging terrain and weather conditions.

Authorities expand the search area for Michael Brown, the suspect in a mass shooting that killed four in Anaconda. Experts highlight challenging terrain and weather conditions.