
Darren Schaefer | DB Cooper, The Cooper Vortex, & The CIA
FBI Investigation and Evidence Handling Discrepancies
The FBI investigation, led by agent Ralph Himmelsbach, faced criticism for potential evidence loss, specifically regarding cigarette butts that could have provided DNA. While Himmelsbach characterized the hijacker as a "sleazy" criminal, the flight crew's accounts suggest a much smoother and more professional operative. The primary physical evidence left behind on the aircraft was a black clip-on tie.


