Forgot last week so you get 2. Both of them are reasons people though Paul McCartney was dead.
In Strawberry Fields Forever, at the end John said, Cran-berry-sause! People thought he said: I-buried-Paul!
On the cover of Abbey Road, people though that it was a funeral procession: Paul was the corpse (he was barefoot), John was the preacher (Dressed in white suit), Ringo was the mourner (Dressed in full black), and George was the gravedigger (Dressed in denim jeans and shirt).