After communicating with police and surrendering at his mother’s home in Kitsap County, the final suspect was arrested in the Feb. 4 shooting death over a marijuana deal in Auburn.

On April 4, Abdul-Mateen Nasir Alamin, 17, but age 16 at the time of the crime, was charged with first-degree murder and first-degree attempted robbery. Alamin is the third and final suspect to be charged in the death of William McKinley, 19. According to charging documents, the homicide occurred during a marijuana sale that turned into a robbery.

According to charging documents, it was reported that on March 28, an officer had been in contact with Alamin via a third party. Documents state that the third party said that Alamin knew law enforcement was searching for him, and Alamin wished to turn himself in.

According to charging documents, an officer then arranged to meet Alamin at his mother’s home in unincorporated Kitsap County, where Alamin surrendered without incident. Documents state that Alamin was then transported to the King County Juvenile Detention Center in Seattle.

According to King County Prosecuting Attorney’s Office spokesperson Casey McNerthney, Alamin is being charged as an adult, and he is being held on a $3 million bail.

“This case has been a top priority for the Auburn Police Department, and the arrests are the result of tireless efforts by our Detectives, SWAT Team, and Special Investigations Unit (SIU),” the Auburn Police Department reported. “Their dedication and commitment to justice have played a crucial role in ensuring those responsible are held accountable. The Auburn Police Department is not seeking any additional suspects in this case.”

On March 19, the prosecutor’s office charged the first two suspects, Zaire Orr, 18, and a 15-year-old, for the murder of William McKinley, 19. The 15-year-old is still charged as a minor, but according to McNerthney, the 15-year-old had a hearing on March 20 where prosecutors asked that he be charged as an adult. McNerthney said that after a status hearing in June, a judge will decide whether the 15-year-old will be charged as an adult.

According to documents, McKinley was selling marijuana over Instagram with his girlfriend when Orr, Alamin, and the 15-year-old approached them to make the sale before attempting to rob them. Documents state that Orr then shot and killed McKinley after McKinley laughed at Orr and began to drive away after he attempted to rob him.

Details of the case

Documents said that the murder occurred at an apartment complex at 1921 22nd Way NE, Auburn. McKinley’s girlfriend, according to charging documents, said they had been selling marijuana over Instagram, and before the shooting, they had met the suspects at the same location to sell them marijuana a few days prior.

The girlfriend said that during the last sale, all three suspects approached McKinley’s car window to buy the marijuana, but this time, two stood by her window while the third, armed with a gun, stood by McKinley’s. She said the other two suspects opened her car door, and she raised her hands and left the marijuana in her lap before the suspect at McKinley’s window began to demand the marijuana.

“The armed suspect demanded the marijuana, saying something to the effect of, ‘You don’t want to get shot over some weed, do you?’ McKinley then put the car in drive and as he attempted to drive away, the suspect with the gun shot him in the head,” documents state. “The vehicle then crashed into a generator enclosure west of their parking spot, and the suspects fled the scene.”

Documents state that law enforcement found four spent 9mm cartridges on the ground at the crime scene, though a surveillance camera captured audio of five shots. After the gunshots were heard, there was what is believed to be the sounds of a car crash, followed by a female screaming.

That surveillance footage then captured three people, wearing clothes that the suspects are believed to have been wearing, running to a house south of the crime scene. The house was about 0.1 miles away from where the alleged murder occurred.

Documents said that video footage after the shooting shows the three suspects fleeing that home south of the crime scene. They left behind the clothes, which they were believed to be wearing during the crime, in a plastic bag, documents state.

A person who was at the home brought the bag of clothes to the police. Police then matched Ring camera footage to each suspect by confirming their identities and then matching the clothes they were given, according to documents.

The person who had the bag of clothes said that the two others who were at the home when the three suspects returned said that Orr turned off all the lights and told everyone to be quiet or he would kill them. The two others who were in the home said that Orr shot McKinley because he laughed at him and didn’t take him seriously when he tried to rob him.

Orr was later tracked to a home in Burien, where he was arrested on March 14. The 15-year-old suspect was also tracked to a friend’s grandparents’ home in Kent and arrested on March 14.