The eyes of accused killer Andrew James McGann are chilling.

Lifeless and glaring at the world, detectives now are investigating if McGann, a teacher, may be responsible for other cold-blooded murders, potentially making him a serial killer.

On July 26, Clinton and Cristen Brink were stabbed to death on a trail at the Devil’s Den State Park in northeastern Arkansas while hiking with their young daughters, aged 7 and 9.

Now, homicide detectives are eyeing McGann, 28, in an unsolved stabbing from 2020 and also a 2023 shooting death at another park.

McGann was arrested last week following an intense five-day manhunt. He has been charged with murdering the Brinks.

According to cops, McGann confessed to the murders in the immediate aftermath of his arrest, made mid-haircut at a salon. His

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