Massachusetts man accused of stabbing mom’s boyfriend 17 times, dousing him in lighter fluid in deadly fight over steaks

A Massachusetts man is accused of stabbing his mother’s boyfriend 17 times and dousing him in lighter fluid after an argument over steaks during Saturday dinner.

Andrew Horsman, 41, seemingly snapped during the fight over steaks with his mom’s longtime partner, 66-year-old Paul Pomerleau, and went into a bloody rage at the older man’s home, investigators said.

Andrew Horsman, 41, allegedly stabbed his mother’s boyfriend during an argument over steaks. Mark Jarret Chavous/The Enterprise / USA TODAY NETWORK via Imagn Images

Horsman stalked over to Pomerleau and proceeded to stab him a staggering 17 times, prosecutor Nicole Piacentini Lawson said during the alleged killer’s arraignment hearing Monday.

After Pomerleau collapsed, Horsman poured a gallon of lighter fluid on his prone body, police said. But he failed to set Pomerleau on fire, as another relative intervened.

Paul Pomerleau died after he was stabbed 17 times. Facebook

The accused stabber fled the scene but was arrested soon after near the residence and charged with murder, according to the Middleborough Police Department.

Pomerleau was rushed to a nearby hospital but died within the hour.

Horsman was living at the home with his mother and Pomerleau, according to Lawson.

Horsman was charged with murder and is being held without bond. CBS Boston

The men had prior beef before the deadly stabbing.

Pomerleau was reportedly critical of his girlfriend’s son for being unemployed and still living with his mother at his age, witnesses said.

Joshua Wood, Horsman’s attorney, claims his client’s violent response was the culmination of years of unaddressed domestic violence.

“These people knew each other. There was a long relationship here and I think that’s important, and the history wasn’t always peaceful. I think when the story fully comes out, it’ll be clear that this wasn’t a random act of violence, as the Commonwealth suggested, but frankly a response to years of suffering,” Wood said.

Exactly what about steaks the two men were fighting over hasn’t been revealed by investigators.

It’ is’s also unclear how long Pomerleau was dating Horsman’s mother. Pomerleau basically “raised [Horsman],” the victim’s twin brother Peter said.

Neighbors were shocked by the violent domestic incident. Boston 25 News

Neighbors near the grisly murder struggled to wrap their heads around Horsman being so violent.

“I’ve known him for 30 years. And I’ll tell you, he was like a gentle giant. He was a great guy. He’d give you the shirt off his back. You know, he really would,” neighbor Jeff Burr told WBZ-TV.

Horsman pleaded not guilty to murder during his arraignment.

He is being held without bail. He is due back in court on July 28.

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