Linda Thomas (South Whidbey Record)

Linda Thomas (South Whidbey Record)

Whidbey Island woman’s grudge led her to murder her sister

The Washington Post retells the bizarre story of Linda Thomas, who was convicted this week.

By Kyle Swenson / The Washington Post

She had already picked the photograph and words. They were how she wished to be remembered.

On Sept. 22, 2015, Linda Thomas walked into the offices of the South Whidbey Record in Freeland on Whidbey Island. The 71-year-old asked to prepay for her own obituary. The picture was of a bespeckled elderly woman cradling a small dog in a flower garden. The text mentioned family members and asked for no flowers or service, just donations to a local food bank or animal shelter. Thomas left the date of her death blank.

But she actually had a good idea when she would go, police would later say.

“I just thought, ‘Good for her, she’s getting her affairs in order,’ ” a paper employee told KOMO News. “Now knowing what affairs she was getting in order, that’s kind of surprising.”

Linda Thomas was convicted of murdering her sister Zonna Thomas. (Contra Costa Sheriff’s Office)

Linda Thomas was convicted of murdering her sister Zonna Thomas. (Contra Costa Sheriff’s Office)

The next month Thomas sold the house on the island where she had lived with her deceased husband, Richard, for many years. On the day the papers were signed, she caught a ride south with friends. Eight hundred miles later, on Oct. 16, Thomas knocked at a house in Rodeo on San Francisco’s East Bay. Inside, Zonna Thomas had not seen or talked to her older sister in years. There was bad blood.

But the 69-year-old and her husband, Donald, invited Linda inside. This was the day, it appeared, they would be reunited.

A little over 24 hours later, Linda Thomas shot and killed Zonna Thomas in the kitchen, a crime police describe as a premeditated murder-suicide driven by sibling rivalry. Last week, a jury in Contra Costa County convicted Linda Thomas of first-degree murder, the East Bay Times reported.

The strange trial hung on the bitter feelings souring the sibling bond — a relationship stranger still because the sisters, Linda and Zonna, married a pair of brothers, Richard and Donald Thomas.

“(Linda) saw her sister as the golden child who got everything, even her parent’s attention,” prosecutor Rachel Piersig told the jury. “The motive in this case goes back to old times, to biblical times. Cain and Abel.”

Linda’s own grudge against her sister turned murderous because of a disagreement about a $1 million inheritance, prosecutors said. She felt she had not gotten her fair share of the money left when the parents of Richard and Donald died.

The resentment drove Linda to the extreme, the state said. Linda “was jealous,” prosecutor Piersig told the jury. “She has this victim mindset and in this victim mindset, Zonna is treated better and she has to sit in the shadows.”

“She was a very disturbed person who for years sent letters threatening family,” the victim’s son, Tim Thomas, told the Whidbey News-Times. “And then followed up on the threats.”

According to the South Whidbey Record, Donald told investigators that after the sisters reunited, the three spent a “pleasant” day together. In the evening, they all had dinner with family friends, then returned to Zonna and Donald’s house. Donald went to bed while the sisters stayed up to talk.

Then around midnight, Donald heard a gunshot.

Running into the kitchen, Donald later testified in court he saw his wife, Zonna, sprawled on the floor, blood coming from a wound in her head. Linda was holding a .38 Special Ladysmith revolver. She aimed at Donald.

He then charged her. The two fought over the gun for 15 minutes. During the struggle, Donald was able to call 911.

“My wife’s been shot by my sister-in-law,” a desperate Donald told the operators as he grappled for the gun, according to testimony reported by the East Bay Times. “Why, Linda? Why?” he kept screaming during the fight.

Linda was arrested on a charge of killing her sister.

Back on Whidbey Island, the news shocked locals. Until Richard’s death in 2014, he and Linda had been known in the community for growing pumpkins and allowing local kids to pick them in October. They also made their own cider, passing out the homemade brew to friends for free, the South Whidbey Record reported.

And as Linda was officially charged in November 2015 with first-degree murder in her sister’s death, her public defender argued it was the end of that bucolic existence on the island that prompted Linda to plot to take her own life.

“Tragically, it does seem that she suffered from depression after her husband of many years died, and reached a point where her own life without her husband did not seem worth living,” attorney Wayne Anderson told the Record. “What occurred afterward was a result of that depression and a tragic accident.”

In court, Linda’s attorneys argued she had made the trip to California to take her own life. They said the visit was a final effort to mend the family fences before committing suicide. Her lawyers argued Linda was attempting to shoot herself with the revolver but, because of shaky hands, she accidentally gunned down Zonna. “Linda was absolutely devastated by what she’d done,” her attorney, Laurie Mont, told the jury.

But Zonna’s family had a different impression of Linda. She was a lifelong bully and control freak, Tim Thomas told the Record. “She is manipulative and dishonest,” he added.

Police also found evidence at the crime scene that Linda intended to take more lives than her own.

At the trial, prosecutors described how police found a “murder kit” she had brought from Washington. Inside were duct tape, zip ties, a syringe, painkillers and ammunition. When she was arrested, police discovered she was wearing homemade dog tags, laminated notes strung around her neck. One was a copy of her driver’s license. The other was a card with instructions to cremate her body after her death “if I’m found dead at my sister’s house, Zonna Thomas.”

Last Monday, a jury found Linda guilty of murder, attempted murder, burglary, elder abuse, with a “lying-in-wait” enhancement, according to the East Bay Times. Sentencing is scheduled for July 24. Linda is likely to spend the rest of her life in prison.

Following the verdict, the defendant apologized to her family and thanked the jury and judge for giving her a fair trial.

Zonna’s son did not buy the sincerity.

“That is classic Linda,” Tim Thomas told the East Bay Times. “She always needs to get the last word.”

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Northwest

A couple walks around Harborview Park as the  Seaspan Brilliance, a 1,105-foot cargo ship, moors near the Port of Everett on Wednesday, Feb. 3, 2021 in Everett, Washington.  The ship is moored until it can offload its cargo in Vancouver, B.C. (Andy Bronson / The Herald)
WA ports await sharp drop in cargo as Trump’s tariff battle with China drags on

Shippers trying to get ahead of the import taxes drove a recent surge, officials say.

A person turns in their ballot at a ballot box located near the Edmonds Library in Edmonds, Washington on Sunday, Nov. 5, 2023. (Annie Barker / The Herald)
Decision on investing WA Cares tax dollars in stock market goes to ballot

A proposed constitutional amendment would let assets, which exceed $1.6B, be invested much like the state’s pension funds. Voters rejected the idea in 2020.

Photo courtesy of Legislative Support Services
Gov. Bob Ferguson speaks to lawmakers and other officials at the state Capitol on Jan. 15 during his inaugural address. Throughout the legislative session, Ferguson indicated he would support legislation to cap rent increases, but he never voiced public support for the bill.
Behind the scenes, Ferguson backed bill to cap rent increases for months

The governor finally voiced support publicly for the legislation on Wednesday after a lawmaker shared information about his views.

Members of the Washington Public Employees Association will go without a wage hike for a year. They turned down a contract last fall. They eventually ratified a new deal in March, lawmakers chose not to fund it in the budget. (Jerry Cornfield/Washington State Standard)
Thousands of Washington state workers lose out on wage hikes

They rejected a new contract last fall. They approved one in recent weeks, but lawmakers said it arrived too late to be funded in the budget.

A few significant tax bills form the financial linchpin to the state’s next budget and would generate the revenue needed to erase a chunk of a shortfall Ferguson has pegged at $16 billion over the next four fiscal years. The tax package is expected to net around $9.4 billion over that time. (Stock photo)
Five tax bills lawmakers passed to underpin Washington’s next state budget

Business tax hikes make up more than half of the roughly $9 billion package, which still needs a sign-off from Gov. Bob Ferguson.

Lawmakers on the Senate floor ahead of adjourning on April 27, 2025. (Photo by Jacquelyn Jimenez Romero/Washington State Standard)
Washington lawmakers close out session, sending budgets to governor

Their plans combine cuts with billions in new taxes to solve a shortfall. It’ll now be up to Gov. Bob Ferguson to decide what will become law.

The Washington state Capitol on April 18, 2025. (Photo by Jacquelyn Jimenez Romero/Washington State Standard)
WA lawmakers shift approach on closing center for people with disabilities

A highly contested bill around the closure of a residential center for… Continue reading

A rental sign seen in Everett. Saturday, May 23, 2020 (Sue Misao / Herald file)
Compromise reached on Washington bill to cap rent increases

Under a version released Thursday, rent hikes would be limited to 7% plus inflation, or 10%, whichever is lower.

The Washington state Capitol on April 18, 2025. (Photo by Jacquelyn Jimenez Romero/Washington State Standard)
Parental rights overhaul gains final approval in WA Legislature

The bill was among the most controversial of this year’s session.

Trees and foliage grow at the Rockport State Park on Wednesday, April 3, 2024 in Rockport, Washington. (Annie Barker / The Herald)
Washington Legislature approves hiking Discover Pass price to $45

The price for a Washington state Discover Pass would rise by $15… Continue reading

Rep. Travis Couture, R-Allyn, speaks on the House floor in an undated photo. He was among the Republicans who walked out of a House Appropriations Committee meeting this week in protest of a bill that would close a facility in Pierce County for people with intellectual and developmental disabilities. (Photo courtesy of Legislative Support Services)
Republicans walk out after WA House committee votes to close center for people with disabilities

Those supporting the closure say that the Rainier School has a troubled record and is far more expensive than other options.

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.