Manson's wife was also injured as she struggled to take the knife away from Manson.
He was sentenced Dec. 9.
The woman, who was a member of the Navy, wrote in court documents that she had suffered years of abuse from Manson and that the stabbing occurred in front of the couple’s daughter.
The woman wrote that she needed 38 stitches and sustained a concussion, characterizing the stabbing as an "act of violence and hate."
The target of Manson’s attack wrote that he required 53 stitches and that Manson had been harassing him in the lead-up to the attack.