Andrew James McGann, 28, of Springdale, was arrested and is accused of killing Clinton and Cristen Brink while they were hiking at Devil's Den State Park in Arkansas. Here is what we know about the suspect:

The 28-year-old teacher accused of stabbing a married couple to death in front of their children at Arkansas’ Devil’s Den State Park bounced between four districts in three states prior to the alleged murders, a report said.