Family Seeks Answers in Death of Navy Veteran and Doctor Stephen Njau

SEATTLE, Wash (TAV) — The family of Dr. Stephen Njau, 39, a U.S. Navy veteran and medical resident at the University of Washington, is demanding answers from Seattle police after he was found dead in Lake Washington on July 19, 2025. Relatives say inconsistencies and missing details have left them unconvinced that his death was accidental.

A Day on the Lake Ends in Tragedy

According to police records, emergency crews were dispatched at 4:48 p.m. after a caller reported an overturned kayak near Bailey Peninsula, just north of Seward Park. When rescuers arrived, they found Njau floating face-up about 400 yards from shore. He was pronounced dead by Seattle Fire Department medics at 5:31 p.m.

Njau’s car, a blue Nissan Altima, was found parked at Lakewood Moorage with his kayak secured to the roof. It was later towed and impounded by police.

Witness Accounts

Police identified three primary sources in the case.

Trevor J. Umbinetti, 33, the boater who first called 911, told investigators he spotted a yellow-and-red kayak floating empty and a nearby boat.

Ten minutes later, the boat was gone. When he approached the kayak, he found an unresponsive man wearing a life jacket, later identified as Njau.

Sheila, whose last name was not recorded, told fire personnel she saw Njau earlier that afternoon at Lakewood Moorage preparing to launch his kayak. Her description helped police identify his vehicle at the scene.

Seattle Fire Department personnel from Engine 28, Ladder 13, and Battalion 5 confirmed they attempted CPR but were unable to revive him.

No other witnesses, or the occupants of the unidentified boat, were located or interviewed.

Contradictory Timelines

Two separate police narratives within the same case file describe conflicting accounts of Njau’s final moments.

At 4:57 p.m., dispatchers reported that the “subject [was] responsive and being assisted by another canoer.”

Two minutes later, at 4:59 p.m., a second update stated that the person was “on shore and had declined assistance.”

By 5:31 p.m., the Seattle Fire Department declared Njau dead.

The reports do not explain how Njau could have been responsive and refusing aid minutes before being pronounced dead. Nor do they identify the “assisting canoer” referenced in the dispatch log.

Adding to the confusion, Njau’s race was incorrectly listed in official records as “Native Hawaiian or Other Pacific Islander,” though he was Black and of Kenyan descent.

The case remains categorized as “Death-Other.”

Police departments often use the “Death-Other” label for fatalities that do not fit neatly under homicide, suicide, accident, or natural causes.

It is a broad classification that signals uncertainty about how someone died. In many cases, it means investigators have not yet determined a cause or are leaving the case open pending further review. Families and advocates say the label can also slow investigations or obscure accountability when a death remains unexplained.

The Autopsy and Lingering Questions

The King County Medical Examiner’s Office ruled the cause of death inconclusive, finding no medical condition, trauma, or toxic substances that would explain drowning.

The manner of death was left undetermined.

Njau’s sister, Charity, said the findings deepened the family’s doubts.

“We are not satisfied with the police reports. They are contradictory and do not make sense,” she said. “He was healthy and physically fit. Something is missing somewhere.”

Charity said investigators have not contacted the family since the day of the incident.

“None of the persons from homicide or the police have reached out to us. We just want the truth,” she said.

A Life of Service and Dedication

Before beginning his residency, Dr. Njau served nearly a decade in the U.S. Navy, first as a medic and later as a General Medical Officer, most recently stationed at Naval Station Everett.

His service included providing medical care in remote areas of the Pacific and mentoring students in underserved communities.

Colleagues described him as compassionate and deeply committed to his patients.

“Stephen brought warmth and humor to our community, and his presence was a gift to all who had the privilege of working alongside him,” said his residency program director, Dr. John Choe.

Njau often spoke about the importance of rebuilding trust in healthcare and saw medicine as an act of service grounded in understanding and advocacy for others.

Unanswered Questions About a Missing Boat

Umbinetti’s account of a nearby boat that disappeared before Njau was found has not been addressed in the police report. There is no record of an attempt to identify or question its occupants.

For Njau’s family, the absence of follow-up and the inconsistencies in the dispatch log suggest critical parts of the case remain unexplored.

Waiting for Police Response

The Africana Voice has reached out to the Seattle Police Department’s Public Information Office and is awaiting a response.

Njau, who served honorably in the U.S. Navy and was pursuing a medical career dedicated to service, received military honors posthumously. His family says the ceremony offered dignity but not closure.

“We just want answers,” Charity said. “We want to know what really happened out there.”

For now, the case remains officially listed as “Death-Other,” with contradictions in the record leaving one family’s grief unresolved.

Editor’s Note: The Africana Voice will continue to follow this story and provide updates.