Martyn Boyns – Cornwall

“I need you, he stabbed me.”

He slashed her neck above her windpipe, stamped on her bleeding body, and ripped off her diabetes sensor as she lay helpless.

The terrifying 3:30 AM domestic attack left a woman covered in blood, slashed twice across the neck, and stamped on by her serial criminal partner.

Martyn Boyns snapped during an argument in their kitchen, punching his girlfriend in the face and stamping on her head while she lay helpless on the floor.

When she bravely stood up to him and declared she was not afraid, the 41-year-old grabbed a knife and brutally slashed her neck – not once, but twice.

As she collapsed to the ground bleeding heavily above her windpipe, Boyns showed no mercy, repeatedly stamping on her wounded neck.

In a cruel act of pure malice, the attacker even ripped off her diabetes sensor while she suffered from double vision and deep lacerations.

The victim was rushed to hospital needing emergency stitches for an 8cm slash and a 4cm wound directly over her windpipe.

This wasn’t his first violent offense. Boyns boasts a staggering 25 previous convictions for 67 offenses, including battery, threats to kill, and assaulting emergency workers.

Despite his horrific rap sheet and the sheer brutality of the attack, his defense blamed a “chaotic childhood” and lifelong substance abuse.

Judge Simon Carr admitted the horrific assault “could have been so much worse” and branded it an “extreme case of domestic violence.”

Yet, despite pleading guilty to unlawful wounding, Boyns was handed just an 18-month prison sentence at Truro Crown Court.