Charges: Argument over a wheelbarrow led to machete murder

Mark Abrahamson Jr., 31, of Arlington Heights, killed roommate Scotty Sass, 51, according to new charges.

ARLINGTON — An Arlington-area man who claimed self-defense after he attacked his roommate with a machete last month has been charged with second-degree murder.

In charging papers filed in Snohomish County Superior Court, prosecutors allege Mark Abrahamson Jr., 31, killed Scotty Sass, 51, in their yard during a disagreement over a wheelbarrow.

On the evening of June 16, Abrahamson was with his girlfriend inside their home around 7 p.m. when they heard Sass yelling in the yard.

They walked outside where Sass was spreading gravel with a shovel, rakes and a handcart, according to charging papers. The roommate reportedly was angry he had to use the cart because his wheelbarrow was missing.

Sass blamed the couple for the missing wheelbarrow. The two men argued and walked toward each other.

Abrahamson was wielding a machete he had reportedly sharpened earlier in the day. The girlfriend stepped between the two men to try to defuse the situation. Sass swore and pushed her out of the way, according to charging papers.

The boyfriend swung the blade and struck Sass’ neck, according to the charges. The girlfriend took the machete, threw it to the ground, then told Abrahamson to call 911. She ran into the house to get towels to treat the roommate’s wound, she reported.

The boyfriend called 911 saying he had used a machete in the fight with Sass, who was injured, according to court documents. He then hung up.

A 911 dispatcher called him back. Abrahamson told the dispatcher that he would not run away. He tried to explain his actions, saying he acted out of self-defense.

A neighbor called 911, too, saying the suspect was running north on 127th Avenue NE in Arlington Heights, according to the charges.

Sheriff’s deputies drove to the crime scene. On their way, they saw Abrahamson, shirtless, sitting on the ground at 127th and 208th Street NE. Blood was on his hands and shoes. He reported he had “ruined everybody’s life,” then went on to say that he had “no choice,” according to the charges. He told deputies Sass strangled his girlfriend and attacked the couple with a shovel.

At the home, deputies found Sass’ body in his gravel driveway. The Snohomish County Medical Examiner’s Office examined his body and confirmed the cause of his cause of death was a chop wound.

A neighbor reported he had been mowing his lawn when Abrahamson ran toward him and told him he had to defend himself.

In an interview, the girlfriend told a deputy that Sass grabbed her shirt, shook her and pushed her out of the way when she tried to intervene. She reported she was never strangled or attacked with a shovel.

Abrahamson claimed he, his girlfriend and Sass had smoked methamphetamine earlier that day, according to the charges. The three roommates had lived together for four months.

The suspect had no previous felony convictions, according to charging papers. In 2012, he was convicted in Grant County of domestic violence assault in the fourth degree, a misdemeanor.

Abrahamson was booked into the Snohomish County Jail on June 17. Everett District Court Judge Tam Bui set bail at $750,000. Bui also imposed a no-contact order prohibiting any communication between Abrahamson and his girlfriend.

In a request to increase the bail amount, deputy prosecutor Matt Hunter noted Abrahamson violated the no-contact order with his girlfriend, “a critical witness,” by talking to her through video calls, phone calls and text messages.

On Monday at an arraignment hearing, Snohomish County Superior Court Judge Cassandra Lopez-Shaw increased Abrahamson’s bail to $2 million. He remained behind bars Friday.

Ellen Dennis: 425-339-3486; edennis@heraldnet.com; Twitter: @reporterellen

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

A Flock Safety camera on the corner of 64th Avenue West and 196th Street Southwest on Oct. 28, 2025 in Lynnwood, Washington. (Olivia Vanni / The Herald)
Everett seeks SnoCo judgment that Flock footage is not public record

The filing comes after a Skagit County judge ruled Flock footage is subject to records requests. That ruling is under appeal.

Lynnwood City Council members gather for a meeting on Monday, March 17, 2025 in Lynnwood, Washington. (Olivia Vanni / The Herald)
Lynnwood raises property, utility taxes amid budget shortfall

The council approved a 24% property tax increase, lower than the 53% it was allowed to enact without voter approval.

The recent Olympic Pipeline leak spilled an undisclosed amount of jet fuel into a drainage ditch near Lowell-Snohomish River Road in Snohomish. (Photo courtesy BP)
BP’s Olympic Pipeline partially restarted after a nearly two-week shutdown

The pipeline is once again delivering fuel to Sea-Tac airport, and airlines have resumed normal operations.

Lynnwood
Lynnwood hygiene center requires community support to remain open

The Jean Kim Foundation needs to raise $500,000 by the end of the year. The center provides showers to people experiencing homelessness.

Logo for news use featuring Snohomish County, Washington. 220118
Vending machines offer hope in Snohomish County in time for the holidays.

Mariners’ radio announcer Rick Rizzs will help launch a Light The World Giving Machine Tuesday in Lynnwood. A second will be available in Arlington on Dec. 13.

UW student from Mukilteo receives Rhodes Scholarship

Shubham Bansal, who grew up in Mukilteo, is the first UW student to receive the prestigous scholarship since 2012.

Roger Sharp looks over memorabilia from the USS Belknap in his home in Marysville on Nov. 14, 2025. (Will Geschke / The Herald)
‘A gigantic inferno’: 50 years later, Marysville vet recalls warship collision

The USS Belknap ran into the USS John F. Kennedy on Nov. 22, 1975. The ensuing events were unforgettable.

Logo for news use featuring Snohomish County, Washington. 220118
Snohomish County man files suit against SIG SAUER over alleged defect in P320

The lawsuit filed Monday alleges the design of one of the handguns from the manufacturer has led to a “slew of unintended discharges” across the country.

The Everett City Council on Oct. 22, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett approves $613 million budget for 2026

No employees will be laid off. The city will pause some pension contributions and spend one-time funds to prevent a $7.9 million deficit.

Kicking Gas Campaign Director Derek Hoshiko stands for a portrait Thursday, Sep. 7, 2023, in Langley, Washington. (Ryan Berry / The Herald)
Climate justice group Kicking Gas is expanding efforts to Snohomish County

The nonprofit aims to switch residents to electrical appliances and can help cover up to 75% of installation costs.

Gretchen Clark Bower explains that each sticky hand hanging from the ceiling was stuck there by a child that came through the exam room at the Providence Intervention Center on Nov. 21, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Providence relies on philanthropy for county’s only forensic nursing center

The Providence Intervention Center for Assault and Abuse serves adults and children affected by sexual or physical violence.

Charlie Rose Ziegler, 4, plays in fake snow in her Christmas themed outfit during Wintertide on Nov. 28, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Winter wonderland: Everett lights up downtown with annual tree lighting

Hundreds packed the intersection of Colby Avenue and Hewitt Avenue on Friday night to ring in the holiday season.

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.