mistakes in earliest reports of major events

According to Len Colby

The news media often makes mistakes in breaking news situations, "Dewey Wins", 'Brady died', the miners in WV were rescued alive etc. there were numerous errors regarding the Newtown shootings.

Which is true... as far as it goes. What it does not stretch to is the situation on 11/22/63 because in none of the events cited by Len will you find misidentification of weapons by experienced officers in their first reports. Nor dare I say will you find any instances of experienced newsmen maintaining the early reports were correct per his own observations - as Alyea did by insisting that the chicken scraps and Dr Peppers bottle were found on the 5th - not the 6th floor.

Len insists the misidentification happened because the cops only "glanced" at the weapon - but these guys grew up in a gun culture - they knew weapons inside out and there was no equivocation in their initial reports suggesting any uncertainty.

Len's other complaint is that planting multiple weapons makes no sense, so can be ruled out on that basis alone. This seems to me to be a logical fallacy. To suggest that something did not happen on the basis that no reason for its occurrence can be discerned completely ignores, or attempts to sweep aside, the evidence that strongly suggests it did in fact happen.

Generalizations such as Len's will never lead to a finding of facts in particular cases.