Authorities in Montana are conducting an intensive manhunt for Michael Paul Brown, a 45-year-old former U.S. soldier and military veteran, suspected of fatally shooting four people at a bar on August 1. The search, now entering its fourth day, involves efforts by the U.S. Marshals Service, which has posted a $7,500 reward for information leading to Brown's capture. The suspect disappeared into the nearby mountains following the shooting. Meanwhile, in Tennessee, a separate case involving the targeted killings of four family members has concluded with the arrest of Austin Drummond, 28, in Jackson. Drummond, a convicted felon with gang ties, was apprehended after a multi-day manhunt that began when a baby related to the victims was found abandoned. Authorities are investigating the possibility of accomplices in the Tennessee case. Montana officials have stated that apprehending Brown remains a top priority.