Loads of conspiracy theories abound about Paul's 'death' from various sources.
One of the daftest ones is people pointing to the regisntration number of the VW Beetle which can be seen on the 'Abbey Road' Cover - 28IF. People said it confirmed that McCartney would have been twenty-eight "if he had lived ...". Simple fact is, the car belonged to someone who worked in the area, they parked there every day, so obviously the car was there when the picture was taken. The person had no connection to the band, the studios, the photographer - or the damned silly 'Paul Is Dead' myth!