John Manchester said in his statement to Jim Garrison that the black Cadillac, seen in Clinton, was identified as being with the International Trade Mart. Here is his statement:
Here is a very telling memo written by Jonathan Blackmer of the HSCA:
Donald Carpenter, in his book
Man of a Million Fragments, writes that: (page 365-366)
"Shaw testified at trial that the International Trade Mart had never owned any vehicles. A review of balance sheets and other financial records for the Mart, from its inception through the 1960s, also shows no evidence of vehicle ownership or leasing by the Mart."