Mariner High School. (Mariner High School)

Mariner High School. (Mariner High School)

Police: Teen arrested for threats against 3 Mukilteo schools

After a social media post, the 14-year-old is being investigated for allegedly threatening to shoot and bomb.

MUKILTEO — A 14-year-old child was arrested for investigation of six felonies after allegedly making threats against three Mukilteo schools Wednesday, according to the Snohomish County Sheriff’s Office.

An anonymous social media post reportedly indicated there would be “a shooting at Voyager Middle School, Explorer Middle School and Mariner High School,” according to the sheriff’s office. Deputies began investigating the threat Wednesday night. The threats were not made toward specific students, said sheriff’s office spokesperson Courtney O’Keefe.

Detectives identified who they believe to be the post’s creator and arrested the suspect, 14.

The teenager was booked into Denney Juvenile Justice Center in Everett for investigation of three counts of threats to kill and three counts of threats to bomb, O’Keefe said. That’s one count for each school.

Meanwhile, the Bothell High School campus was closed Thursday after threatening graffiti was found there, the Northshore School District superintendent wrote in a statement.

The threats came after a 15-year-old student was charged in a mass shooting at a Michigan high school on Tuesday. Four students died.

The Mukilteo School District released a message to families Thursday:

“These situations, even once resolved, are understandably concerning to everyone in our school communities. We are very grateful to Snohomish County Sheriff’s office and the staff who monitored the situation throughout the night. This was a great example of many people working together to keep schools safe, starting with the students who reported the social media posts right away. Because they reported the concern immediately, we were able to respond quickly and resolve the issue without having to interrupt school. We hope students, families and staff know that there are many people working behind the scenes to keep them safe, day and night.”

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Employees and patrons of the Everett Mall signed a timeline mural that traces the history of the 51-year-old indoor mall that was once considered the premier place to go shopping in the city. Thursday, March 20, 2025 (Aaron Kennedy / The Herald)
Mall mural offers nostalgic trip into the past

Past and present Everett Mall employees joined customers Thursday to view an artistic timeline of the once popular shopping mecca.

Edmonds Mayor Mike Rosen gives his State of the City address on Thursday, March 20 in Edmonds, Washington. (Will Geschke / The Herald)
Edmonds mayor talks budget at 2025 State of the City

Mayor Mike Rosen discussed the city’s deficit and highlights from his first year in office.

Daron Johnson, who runs Snohomish County Scanner, stands next to his scanner setup on Tuesday, April 1 in Everett, Washington. (Will Geschke / The Herald)
Snohomish County law enforcement to encrypt police airwaves

The plan for civilian police scanners to go dark pushed a host to shut down his popular breaking news feed.

Richie Gabriel, 1, jumps off the bottom of the slide as Matthew Gabriel looks down at him from the play structure at Hummingbird Hill Park on Monday, March 31, 2025 in Edmonds, Washington. (Olivia Vanni / The Herald)
Edmonds residents show up for Hummingbird Hill Park, Frances Anderson Center

After a two-and-a-half hour public comment session, the council tabled its votes for the two comprehensive plan amendments.

Students Haddie Shorb, 9, left, and brother Elden Shorb, 11, right, lead the ground breaking at Jackson Elementary School on Tuesday, April 1, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett district breaks ground on Jackson Elementary replacement

The $54 million project will completely replace the aging elementary school. Students are set to move in by the 2026-27 school year.

Logo for news use featuring Snohomish County, Washington. 220118
Another positive measles case identified in Snohomish County

The case was identified in an infant who likely contracted measles while traveling, the county health department said.

A Tesla drives along 41st Street on Wednesday, March 26, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Washington faces uncertain future of Clean Air Act regulations

The Trump administration’s attempt to roll back numerous vehicle pollution standards has left states wondering what’s next.

A person walks through the lot at Kia of Everett shopping for a car on Tuesday, April 1, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
‘The tariffs made me do it’: Customers move fast on cars

At one Everett dealership, customers move fast on cars ahead of Wednesday’s expected announcement on tariffs.

Public’s help needed to find missing Arlington man

The 21-year-old left the house Sunday night without his shoes, cell phone or a jacket, and was reported missing the following morning.

Will Geschke / The Herald
The Marysville Tulalip Campus on the Tulalip Reservation, where Legacy High School is located.
Marysville board votes to keep Legacy High at current location

The move rolls back a decision the school board made in January to move the alternative high school at the start of next school year.

The former Marysville City Hall building along State Avenue on Tuesday, April 30, 2024 in Marysville, Washington. (Olivia Vanni / The Herald)
City of Marysville, school board amend property exchange

The city will relocate its public works facility to the district’s current headquarters, which will move to the former City Hall.

Snohomish County Elections employees Alice Salcido, left and Joseph Rzeckowski, right, pull full bins of ballots from the Snohomish County Campus ballot drop box on Monday, Nov. 4, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
County to mail ballots for Edmonds, Brier elections

Registered voters should receive their ballots by April 9 for the April 22 special election.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.