Arkansas State Police have released a composite sketch of a man wanted for questioning in connection with the murder of Clinton and Cristen Brink, a married couple found dead Saturday afternoon at Devil’s Den State Park, as reported by The New York Post.

The couple had been hiking with their two young daughters, ages 9 and 7, who were found unharmed and are now in the care of relatives.

The manhunt, now in its fourth day, intensified Monday evening with the release of the suspect sketch.

Authorities described the individual as a White male with a medium build, seen wearing a dark baseball cap, sunglasses, a long-sleeved shirt with the sleeves rolled up, dark pants, and fingerless gloves. He was also carrying a black backpack.

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State police said the man was spotted in the park on Saturday, the same day the Brinks were killed. Officials are urging visitors who were at Devil’s Den that day to review any photos or videos for potential sightings of the individual.

Investigators noted that the suspect likely sustained an injury during the attack. However, authorities have not disclosed the exact cause of death or possible motive for the killings. The bodies of Clinton, 43, and Cristen, 41, have been taken to the state crime lab for autopsies.

The suspect was reportedly seen driving a black four-door sedan, possibly a Mazda, with tape covering the license plate. The vehicle was last seen heading toward an exit of the park and may have traveled along State Route 170 or 220.

The couple had recently relocated from South Dakota to Prairie Grove in northwest Arkansas. Mayor David Faulk confirmed their water service had been connected less than two weeks earlier.

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Clinton Brink had been scheduled to begin working as a milk delivery driver for Hiland Dairy on Monday.

In a statement issued Monday, the family of the victims asked for privacy and encouraged the public to assist authorities with any leads.

“Clinton and Cristen died heroes, protecting their little girls, and they deserve justice,” the family said. “They will forever live on in all of our hearts.”

Devil’s Den State Park, located about 140 miles northwest of Little Rock, spans 2,500 acres and is known for its hiking trails and natural rock formations. State police continue to search for leads and ask the public to report any relevant information.

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