
NIWOT — A woman accused of stabbing her fiance and his friend in the back early Tuesday was engaged in a sexual threesome and drug use with the two men before they all started fighting, authorities said Wednesday.
According to Boulder County sheriff’s officials, Ruffin Griffin and Clint Cadigan, both 28, left a Niwot bar together about 11:30 p.m. and went to the house where Griffin lives with Serena M. Brooks, 30, and their 6-month-old son.
A sheriff’s report made public Wednesday said all three of the adults started using methamphetamine and then engaged in three-way sex.
During the encounter, the men began to argue and “fell to the floor” during a physical fight.
While they were fighting, Brooks grabbed a steak knife that “they had been using to scrape the methamphetamine as they smoked it,” the report said.
When the men wouldn’t stop fighting, Brooks stabbed them both in the back “in an attempt to break up the fight.”
Brooks and Griffin began yelling at each other, and Griffin allegedly hit Brooks in the face before leaving the home with his friend. The men drove together to Boulder Community Hospital, where they were treated for serious but not life-threatening injuries.
Brooks was treated later for injuries to her face.
A hospital spokeswoman said Cadigan remained in intensive care Wednesday in fair condition. Griffin was discharged Wednesday afternoon.
When reached later Wednesday, Griffin said he was feeling better and would probably heal in about three weeks. He declined to discuss specifics of what happened but did say: “I want to apologize to the citizens of Boulder and Niwot for my irresponsible actions over the weekend.”
Sheriff’s Cmdr. Rick Brough said deputies recovered drug paraphernalia from the home. Investigators believe that in addition to the suspected methamphetamine, the trio possibly used marijuana and alcohol.
“Unfortunately, what we see is when you get alcohol, drugs and weapons involved, . . . someone gets hurt,” Brough said.
He said the child was asleep during the fight and wasn’t hurt, but the adults were in no condition to properly supervise him, and the drug paraphernalia created a hazard.
According to the sheriff’s report, the door to the bedroom was left open during the drug use, fighting and stabbing so Brooks could hear if the child cried.
Brooks faces possible charges of first-degree assault and child abuse. She is being held at Boulder County Jail in lieu of $50,000 bail.



