This weekend’s fatal stabbing at a homeless encampment in Kalihi started with an argument over infidelity, Deputy Prosecutor Ashley Tanaka told a state judge Thursday after an Oahu grand jury charged a 25-year-old woman with killing her 35-year-old boyfriend.

The grand jury indictment charges Marie Limehouse with murder in the Sept. 7 death of Mickenzie Peter.

Circuit Judge Shirley Kawamura confirmed bail for Limehouse at $500,000.

Honolulu police said Limehouse told them, “He stomped my head and tried to throw me off the cliff! That’s why I stabbed him!”

Police also said witnesses heard female voices yelling and Limehouse screaming for help before the stabbing.

Mickenzie died from a stab wound to his neck from a saw blade that punctured his lung. Honolulu police recovered the saw, which has a blade that measures 12 inches long and 1 inch wide.

Tanaka told Kawamura that Limehouse lives in Kam IV Apartments in Kalihi and in December allowed Peter to move in with her as she tried to find him a job and get him off drugs. She said both frequented a homeless encampment near DeCorte Neighborhood Park on Perry Street, also known as Perry Park.

She said Limehouse told police that Peter arrived at her home Saturday afternoon and that they drank whiskey before going to Perry Park. When they arrived at the encampment, Limehouse confronted a homeless woman about sleeping with Peter, which started an argument between Limehouse and Peter about cheating on each other.

Limehouse told police that Peter then beat her and that she stabbed her boyfriend to stop him from beating her.

After the stabbing Limehouse went to the park, tossed the saw into the bushes and told a woman there that Peter had beat her up. The woman followed Limehouse to the encampment where Peter’s body was and heard Limehouse tell the people in the encampment that she stabbed Peter in self-defense.

Police found Limehouse sitting in the encampment. An ambulance crew pronounced Peter dead at the scene.