SEATTLE — In a press conference on Tuesday, police say they have recovered three weapons used in the shooting. The first, an illegal Polymer 9mm ‘ghost gun’ with an extended 33-round magazine, was found with 19 rounds left in the magazine on the 15-year-old-suspect.

A second gun, a Springfield RO 9mm, was discovered, but not used, according to Chief of Police Shon Barnes.

In addition, a third gun, a Glock .45 9mm pistol with an automatic switch and extended 40-round magazine, was discovered during clean-up yesterday — hours after the shooting. The Glock had 21 rounds left in the magazine.

Both the Glock and the ‘ghost gun’ were believed to be used in the shooting, according to Chief of Police Shon Barnes.

Police are also looking for an eighth victim who reported to UW Med with a gunshot wound. They were unable to identify the individual themselves, and are asking them, or anyone who may know that person, to contact them immediately.

Police are still looking for one suspect and have arrested a 15-year-old boy in connection with a mass shooting at the Seattle Center that left three people dead, including one suspect, and at least four others hurt on Sunday night.

All seven people were treated for gunshot wounds, including a 2-year-old child who was hurt and taken to the hospital.

In a press conference Monday, Seattle Mayor Katie Wilson and Assistant Chief of Investigations Nicole Powell told reporters that police believe the shooting may have been gang-related.

Police confirmed one suspect, a 15-year-old boy, was taken into custody immediately following the shooting. Court documents obtained by KIRO show that, on Monday, investigators believed one of the shooters, a 19-year-old man, died from a gunshot wound at the scene.

Documents say that police are still looking for a third suspect whom police believe the suspect in custody and the teen who passed away on the scene were “associates” of, and that they may have been working together and shooting at each other.

In the press conference Monday, officials did not directly address if there is a current risk to the public posed by this unidentified person but encouraged anyone with any video of the incident to come forward.

The first press conference after the shooting took place nearly five hours after police initially said they would provide information. You can watch the full video of that first press conference here.

Police say two guns were recovered from the scene. Officials did not answer questions Monday on the type of guns recovered.

Deaths and injuries

According to SPD Assistant Police Chief Davis, seven people were shot at the event. Two people, a 19-year-old man and a 44-year-old man, were confirmed dead at the scene. A third, a 56-year-old woman, later died at the hospital.

At least four others were hurt, including a two-year-old boy, a 39-year-old woman, and a 23-year-old man with a range of injuries to their arms, legs, abdomens, and lower legs, according to Seattle Fire. A 40-year-old woman with minor injuries declined transport to the hospital, police confirmed Monday.

Police say a “possible eighth victim,” a 27-year-old man who walked into UW Medical Center – Montlake with a gunshot wound Sunday evening, has been discharged.

Monday afternoon, Harborview Medical Center (HMC) told KIRO the toddler, a two-year-old boy, who had been the only remaining patient at Harborview, was discharged.

The other two victims who were taken from the scene to HMC, the 39-year-old woman and the 23-year-old man, have been discharged.

Information and reward

The police department is asking for any witnesses to come forward.

On Monday morning, the Youth Peace & Justice Foundation announced a reward of up to $5,000 for information leading to the identification and arrest of any outstanding suspect(s) connected to Sunday’s deadly shooting.

If you wish to speak with the department, you can call the Violent Crimes Tip Line at (206) 233-5000. You can remain anonymous.

You can also contact the Youth Peace & Justice Foundation regarding reward information or crisis services.

Closures & other impacts

The Seattle Center Monorail has confirmed that service is shut down for the remainder of Sunday. It will resume Monday at 7:30 a.m.

According to a post on Facebook, the Pacific Science Center said it will be closed Monday, and all general admission shows are canceled, and guests will be refunded.

The Seattle Center Armory is also closed to the public on Monday, July 27, adding that “due to delayed load-out of the Bite of Seattle, there will be limited access to Seattle Center grounds.”

This is a developing story; we will provide more information when it becomes available.

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