The horrific and chilling moment that a man was arrested for killing a homeless person was caught on camera.
His story has become more widely known after becoming the subject of a disturbing YouTube true crime documentary.
The true crime documentary was titled Parents Discover Teen Son's Horrifying Secret and it was posted on the EXPLORE WITH US channel.
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Brian Cohee was just 19-years-old at the time of his arrest in Colorado, USA, after a 911 call from his mother brought the police to his house, where she found something gruesome in his bedroom.
The disturbing incident was uncovered when her son's bedroom had bags containing the body parts of homeless man Warren Barnes in 2021.
Cohee has dismembered, decapitated, and mutilated the 69-year-old's body, as his mother Terri found Barnes' head and hands decomposing in separate plastic bags in his closet.
It was later revealed that Cohee had tried to get rid of the rest of the body by stuffing it into the boot of his car and driving it into the Colorado River.
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The now-21-year-old was later sentenced to life behind bars for the crime.
But harrowing police dash cam footage captured their first interactions with Cohee after the call from his mother, which revealed what kind of person they were dealing with.
Shortly after arriving, the teenager was called outside to be questioned, and the police asked: "Your parents have concerns over some stuff they may have found in your room? What would that be?"
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To which Cohee replied with a deadpan tone: "Yeah, I believe so, a human head and hands. From that fella that went missing. I murdered him with a knife.
"I always wondered what murder would feel like," he said, when asked why he did it.
His mother recalled the moment she found the remnants of Barnes, saying that she was 'digging through' his stuff in his cupboard after finding a rubber-made container.
She continued: "I saw a plastic bag and I was like what in the world is this, I picked it up and it was heavy and I held it in my hands, maggots covering it.
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"I take it to the sink, it was double bagged so I opened the first bag, and I didn't open the second bag. I called his father and said ''you need to get over here right now'.'"
The parents' call to 911 revealed that their son always had an interest in 'death and mortality', with Cohee later admitting that he used a kitchen knife to kill his victim after six months of planning.
He aimed to kill a sex worker or a homeless person as he thought no-one would miss them or notice that they were gone.
Cohee also eerily displayed no regret at carrying out the disgusting crime, as he impulsively decided 'why not'.
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"I was driving around and I see a shape and I am like 'oh interesting'. I'm like that's a homeless person, so I grabbed my knife, I put on three layers of gloves because plastic gloves can betray their users because they're so thin, I took the knife I pulled back the canvas and I stabbed his neck.
"He was panicking at first in, he was saying what are you doing, what are you doing why, why, and I just kept on stabbing his neck," the killer explained.
During the investigation, he also laughed as he explained in great detail how he dismembered the man's body, displaying excitement to tell the detectives about his crime.
At the trial, he pleaded insanity, but was eventually given a life sentence without the possibility of parole in 2023, being found guilty of first-degree murder, two counts of tampering with a dead body and tampering with evidence.
With over 37 years of experience in the criminal justice system, Judge Richard Gurley labelled this instance as one of the most horrific he had ever seen.
He also acknowledged the mental problems that Cohee had, due to his thoughts about murder for some time.
Despite Cohee thinking that Barnes would disappear unnoticed, he was proved wrong as loving friends and family installed a memorial sculpture in his memory, located in one of his favourite places.
Featured Image Credit: Youtube/ Explore with usTopics: Crime, YouTube, True Crime, US News