D.B. Cooper: The Unsolved Hijacking

Introduction

On the afternoon of Thanksgiving eve, 24 November 1971, a middle-aged man in a business suit boarded Northwest Orient Flight 305 from Portland, Oregon, to Seattle, Washington, using the name "Dan Cooper." Shortly after takeoff, he passed a note to flight attendant Florence Schaffner claiming to have a bomb in his briefcase. He demanded $200,000 in cash (approximately $1.4 million in 2024 dollars), four parachutes, and a fuel truck at Seattle-Tacoma Airport.

The airline complied. After the 36 passengers were released on the tarmac, the plane took off again with the crew and Cooper aboard. Somewhere over the Lewis River valley in southwestern Washington, at approximately 8:00 p.m., Cooper lowered the aircraft's rear airstair and jumped into darkness, rain, and temperatures well below freezing. He was never found. No confirmed evidence of his survival — or death — was ever recovered.

The D.B. Cooper case (the misleading nickname came from an early reporter's confusion about a different Portland man named D.B. Cooper) is the only unsolved case of air piracy in American aviation history.

The FBI's Long Investigation

The FBI's NORJAK (Northwest Hijacking) investigation became one of the agency's most persistent cases. The Bureau amassed a file of more than 60,000 pages and investigated more than 1,000 suspects over 45 years. Every major suspect was either cleared, died unconfirmed, or provided insufficient evidence.

In July 2016, the FBI officially suspended active investigative work on the case, stating it would redirect resources to other priorities. The case remains technically unsolved and the file remains open.

The physical evidence is meagre but real. In 1980, an eight-year-old named Brian Ingram was digging a campfire pit along the Columbia River at Tena Bar — roughly 20 miles from the projected jump zone — and unearthed three packets of deteriorated $20 bills totalling $5,800. Serial numbers confirmed they were from the Cooper ransom. The FBI has never been able to definitively explain how the bills reached Tena Bar; hydrological analysis has produced conflicting theories about whether they washed downriver naturally or were buried.

The Tie and Citizen Science

When Cooper left the aircraft, he left behind his clip-on tie and a mother-of-pearl tie clip. In 2007, private researcher Tom Kaye and a team of volunteers examined the tie under electron microscopy and found unusual metallic particles including rare earth elements (cerium, strontium sulfide), and titanium. The particle profile suggested Cooper may have worked in an industry using these materials — possibly aerospace manufacturing, atomic energy facilities, or certain chemical manufacturing sectors.

The findings received significant media attention but produced no confirmed identification. The FBI reviewed the analysis but did not change its investigative conclusions.

Major Suspects

Over the decades, numerous suspects have been put forward:

Richard McCoy Jr. — Parachuted from a hijacked 727 in April 1972 in a nearly identical operation, and was caught. FBI profilers long considered him a leading suspect, but he was 29 in 1971 and Cooper was described as mid-40s; a thorough FBI investigation in the 1980s concluded he was likely not Cooper.

Duane Weber — A petty criminal whose wife came forward after his 1995 death claiming he had confessed on his deathbed. DNA testing of the tie was inconclusive; the FBI ruled him out.

L.D. Cooper — A suspect advanced by his niece Marla Cooper in 2011, based on family memories of her uncle returning injured the day after the hijacking. Testing of materials associated with L.D. Cooper was inconclusive.

Robert Rackstraw — A paratrooper, convicted felon, and con artist whose case has been pursued most aggressively; amateur investigators claimed in 2016 that coded messages in Cooper's ransom note pointed to Rackstraw. The FBI examined this claim and did not find it convincing.

Why the Case Matters

The D.B. Cooper case is genuinely and completely unsolved — not in the way conspiracy theorists often use "unsolved" to mean "the answer is suppressed," but in the straightforward sense that the perpetrator was never identified despite decades of effort. The romanticisation of Cooper as a folk hero (dozens of books, films, and festivals in his honour) reflects a cultural appetite for the idea of a successful, victimless crime. No one died; the airline was insured; Cooper probably did.

The conspiracy-adjacent claims tend to argue that the FBI knows who Cooper was but is suppressing it. No credible evidence supports this. The more prosaic possibility — that Cooper landed in a remote area in bad conditions, was injured or killed, and was never found — is consistent with the physical evidence and the known challenges of the jump.

Verdict

Unsubstantiated: the numerous identity theories are individually unproven. This is a genuine unsolved historical mystery. The physical facts (the hijacking, the ransom, the partial bill find) are confirmed; the identity of D.B. Cooper is unknown and may remain so permanently.