While on a family hike at Devil’s Den State Park on Saturday, Cristen’s husband Clinton was ambushed and stabbed by an attacker, according to Arkansas State Police. First, investigators say, she ran away to get their young daughters to safety. Then Cristen Brink went back to try to save Clinton.

A 28-year-old Arkansas man was arrested Wednesday in the killings of a married couple in front of their children at Devil’s Den State Park over the weekend, officials said.

State police identified the victims on Sunday as 43-year-old Clinton David Brink and his 41-year-old wife, Cristen Amanda Brink. In a statement issued on Sunday, the Arkansas State Police said the couple was killed while out hiking with their two daughters, ages 7 and 9, who were not injured in the incident.