It would have been an enormous coincidence if the murders of JFK and Tippit were unrelated. JFK is the only president to ever be murdered in Dallas. Tippit was the only DPD officer to be murdered in a several year span before and after 1963. Both were murdered in broad daylight within a short time and distance of one another. Individuals such as Hugh Aynesworth left the TSBD upon learning of the Tippit murder in Oak Cliff because he thought the events were related. That doesn't alone mean that they had to related, but there was a high probability of being related given the proximity in time and distance and extreme rarity of these events. Now we know with absolute certainty that they were related based upon the evidence and investigation. To suggest otherwise is another contrarian absurdity.