Update: Seattle Police Department spokesman Sean Whitcomb says Alvarez-Guerrero has been taken into custody in Fresno, California.

Seattle police are searching for a 40-year-old murder suspect after he was released from police custody early this morning.

Around midnight, police were called to am apartment complex in the 7400 block of Rainier Avenue S about a domestic disturbance between two roommates. Police separated the two men and arrested Valente Alvarez-Guerrero and took him to the South Precinct. Three hours later, Alvarez-Guerrero was released.

At 7am, police were again summoned to the apartment building after Alvarez-Guerrero's roommate was found stabbed to death in a building hallway.

At a media briefing this afternoon, SPD assistant chief Nick Metz said the department "has some questions as to why" Alvarez-Guerrero was released.

Domestic violence law require officers to book the aggressor. It is unclear in this case why Alvarez-Guerrero was not booked into King County Jail.

Metz says two officers and a sergeant have been put on administrative reassignment and an investigation is being conducted by the Office of Professional Accountability.