Fast forward several years and in retirement, Colin himself decides to review all the evidence including the massive Warren Commission report and other associated documents. In a process that takes years, Colin uncovers a massive cover up, with many witness statements ignored in official evidence, the chain of evidence broken at the hospital and many other facts that all support Howard Donohue's theory.
Colin explains it is not his intention to apportion blame, rather he wants to put to bed one of the most enduring mysteries in history. He believes secret service agent George Hickey was placed in a position he was not trained or prepared for, and the fatal shot was simply a tragic accident with awful consequences.
Colin has broken down very complex evidence into a readable and very interesting book that I believe puts across a very plausible theory. Definitely worth a read.