The challenge for the conspiracy people, which they won't accept, is to take all of their planted evidence, the mysterious deaths, the second Oswalds, the multiple gunmen, etc and weave it into
a coherent narrative. They simply have too much conspiracy factoids that you cannot put into a narrative.
fred
The Dallas PD was either incompetent or intentionally malicious, but most of the problems with the evidence at the Book Depository and Tippit crime scenes originates from the mishandling of the case by local police. Captain Westbrook appears to have been in the middle of nearly all the problems with the Dallas PD evidence on 11/22/63.
The FBI is responsible for the post-11/22 cover-up and they no doubt got orders from LBJ and Hoover to focus on Oswald and ignore other potential leads.
The CIA and Secret Service obstructed investigations and covered up stuff too.
All of the above could be dismissed as incompetence and attempts after the fact to cover up their incompetence. I'm receptive to that argument.
However, in the big picture, that explanation doesn't explain the inconsistencies in the forensic evidence and other inexplicable stuff related to this case.
For example, how is it that dozens of witnesses between Parkland and Bethesda said they saw the back of Kennedy's head blown out but the autopsy photos don't show it? We're talking about doctors and nurses. Not lay people. How could so many of them be wrong in their description of Kennedy's head wound?
The inconsistencies with the Medical evidence are one of the main reasons I don't think we'll ever be able to conclusively say there was a single shooter.
People intuitively feel that there's more to the story and they're probably right.