"Two of these pieces bore a vehicle identification number (VIN) that the FBI traced to a rental agency in Jersey City, N.J. The man who rented the truck, Mohammed Salameh, had reported it stolen.
Seeking a refund of his $400 deposit, Salameh repeatedly returned to the Jersey City rental agency where he rented the Ryder van. Working with the rental office personnel, FBI agents arrested Salameh." [0]
So, yes, it really did happen. At least he reported it stolen first. I cannot believe that did not eliminate him as a suspect as that was such a well thought out alibi. Besides, how much was that $400 refund in comparison to the money that Osama surely must have paid him to carry out the deed.
[0]https://www.911memorial.org/connect/blog/1993-world-trade-ce...