Burien Man Charged with Brutal Double Murder of Girlfriend and Her Roommate

Burien Man Charged with Brutal Double Murder of Girlfriend and Her Roommate

BURIEN, Wash. — A Burien man is facing two counts of first-degree murder after prosecutors say he fatally stabbed his girlfriend and her roommate in a violent domestic attack earlier this month.

Court documents identify the suspect as Marvin Ortiz Montecinos, 29, who is being held on $10 million bail in King County Jail. Prosecutors allege Ortiz Montecinos attacked his girlfriend, Victoria Aparicio Cruz, inside her Montrose Apartments unit on September 8, stabbing her more than 20 times.

Her roommate, Yaneth Gómez Hernández, reportedly rushed to help and was killed in the process. She was found with 43 stab wounds and severe defensive injuries. Investigators described the attack as “extremely violent,” noting injuries that included severed jugular veins, carotid arteries, and even a partially cut spinal cord.

Deputies first encountered Ortiz Montecinos bleeding outside the apartment complex with superficial stab wounds. He initially told detectives that an unknown man had attacked the women and stabbed him as well. However, investigators found no evidence to support that claim.

Blood evidence, digital records, and a buried filet knife linked Ortiz Montecinos to the murders. Cellphone messages recovered by detectives showed an exchange between him and Aparicio Cruz just an hour before the killings, in which she expressed her intent to end their relationship.

Prosecutors classified the case as domestic violence, citing both intimate partner violence and household member status. Ortiz Montecinos’ arraignment is scheduled for September 17.