A White/Caucasian female, age 27, Irene Coulthurst was aboard the 58-foot seiner Investor with her husband, Mark, their two young children, and four teenage deckhands when the boat eased into Craig, Alaska, over Labor Day weekend in 1982. After a birthday dinner for Mark on September 5, the Investor drifted from the harbor before dawn, and by the morning of September 7 the vessel lay anchored off Fish Egg Island, strangely idle while others fished.
Flames soon swallowed the boat; when firefighters and fishermen reached the scene, they confronted an inferno on the water and, later, the remains of eight people, including Irene, who investigators determined had been shot before the fire was set. The murders—still Alaska's largest unsolved mass homicide—shattered the small fishing town and sent shockwaves through maritime communities from Southeast Alaska to Washington.
In the foggy hours surrounding the blaze, multiple witnesses recalled a young man piloting the Investor and later using the ship's skiff, as well as a separate sighting of a man buying gasoline on the morning of September 7. Those fragments—and the discovery that no one aboard had died of smoke inhalation—steered investigators toward a theory of deliberate execution followed by arson to destroy evidence. Irene's death on September 7, 1982, in Craig is memorialized alongside the names of her family and crew, a stark roll call that underscored how quickly the Investor's tight-knit company vanished into smoke.
Two years later, authorities arrested former deckhand John Kenneth Peel, who had previously crewed for Mark and was seen in Craig over the holiday weekend. He was charged with eight counts of murder and arson. The prosecution's case leaned heavily on eyewitness accounts and circumstantial clues from the chaotic harbor—conversations at the birthday dinner, the skiff sightings, and the gasoline purchase—because the fire had obliterated most physical traces. Peel's first trial ended with a deadlocked jury; at a 1988 retrial in Juneau, he was acquitted on all counts. Peel later filed a civil suit and ultimately reached a settlement with the state, while the killings of Irene and the seven others aboard the Investor remain officially unsolved.
Irene's name has endured in public remembrances and archives that mark the date and place of her death—September 7, 1982, Craig, Alaska—alongside the story of the Investor's destruction and the unanswered question of who extinguished eight lives at sea. The case endures as a haunting chapter in Alaska's history, a crime without resolution that left a young family and crew silenced and a community still listening for the truth.
