And you deny being a biased propagandist?
given the sum total of evidence which verifies that Lee Harvey Oswald was positively the murderer of Dallas Police Officer J.D. Tippit
This is a weak circular argument. First you assume that Oswald was Tippit's killer and then you try to make the evidence fit that opinion. There is nothing logical about a circular argument.
Helen Markham was merely a minute or two behind her normal routine on 11/22/63.
No she wasn't. She testified that she left home on 9th street at 1.06 or 1.07. A one block walk, from 9th to 10th street would have taken her no more than 3 minutes, getting her to the corner of 10th and Patton at around 1.09 or 1.10. The result of your concocted story is not that she was "a minute or two behind". You have her five minutes behind and needing 8 minutes to walk approx 400 feet from 9th to 10th street. It's beyond belief.
the 1:14:30 time comes from the world's leading expert on the Tippit killing, Dale K. Myers
First of all, this is a appeal to authority fallacy and a very bad one, because there is no such thing as "the world's leading expert on the Tippit killing". All there is, is a guy with an opinion who has written a book to make money out of a tragedy. The mere fact that you agree with him doesn't make him an expert.
(which is an estimate that I think is just about right, given the timing of when Domingo Benavides first started mashing the mic on the radio in Tippit's patrol car, which was 1:16)
Assumes that the times of the DPD radio recordings are actually 100% correct, which they are not. Bowles, who was in charge of the DPD dispatchers, has told us unequivocally that police time was not real time.
Consider this; when Benavides could not get the radio to work, Bowley took the mic from him and made a call that lasted 48 seconds (you can time the audio recording). Ted Callaway was less than a block away from 10th street when he heard the shooting. He first encountered a man running towards him with a gun and then ran to the scene. That didn't take him more than 3 minutes, after the shots, at best. If we assume that the shooting took place, as Myers claims, at 1:14:30 than Callaway would have arrived on the scene at 1:17:30. The official narrative has Bowley starting to make his call past 1:17. However, when Callaway arrived, Bowley had already completed his call, which means Bowley's call must have started earlier and, in turn means that there is no way that Benavides started "smashing the mic on the radio" at 1:16.
So the question would be: Could Mrs. Markham traverse the distance from 10th & Patton to her Jefferson bus stop in about 30 seconds? I really have no idea. Maybe somebody in Dallas/Oak Cliff can try a re-creation to see how long it takes (at a regular walking speed, or even a fast walk) to walk that distance.
Already done and the answer is easy; No. The distance between 10th/Patton and Jefferson is one block, just over 400 feet. At walking speed it takes around 2 to 2,5 minutes.
So, why are you now backtracking from your own statement?
Oh and before I forget; are you really saying that Bowley needed 22 minutes to drive a 6.3 miles distance, which at normal speed would only have taken him 13 minutes at best? You must be saying that, because that would be the consequence of Myers' bogus timeline.
As David is apparently still busy considering how to reply, I'll give him some more information to consider.
That the timestamps on the DPD radio recordings are not reliable is proven by the actual recording itself.
After the dispatcher calls 1:12 there is only 23 seconds of conversation with "45".
This is followed by a tape slice which takes 33 seconds. During that time the dispatcher saying "Did you get it 45" is repeated 8 times. Strangely enough, in the background a noise can be heard which could be somebody keying a mic.
This is followed by 28 seconds of added conversation which can not be found in the transcripts.
As I believe, with good reason, that Tippit was shot around 1:09 or 1:10 it could be regarded as somewhat remarkable that exactly around the time Benavides was trying to key the mic of the police car, there was a slice in the recording. But I'm sure David will tell me I'm just paranoid.
So, let's move on. After the sliced part, the conversation on channel 1 starts again with a call from "212". The segment starting with that "212" and ends with the dispatcher calling the time stamp 1:15 has a total duration of 49 seconds.
Combined this means that the tape slice must have taken from 1:12:45 to 1:14:11, if (and that's a very big "if") the time stamps are correct. But they are not, as we will now see;
The next segment between the time stamp 1:15 and 1:16 is only 47 seconds long. And between 1:16 and 1:19 there are no time stamps at all. However, we can measure the time from the 1:16 time stamp until Bowley starts his radio call. The duration of that segment is 1 minute and 47 seconds. Add to this the 48 seconds that Bowley's call lasted and you end up at 1:18:35 as the actual time (according to the recording) where the dispatcher called 1:19.
The evidence that the DPD radio time stamps can not be relied on, as Bowles told us, is staring us in the fact. All anybody who wants to know (which probably excludes the LNs) has to do it time the actual recording with a stopwatch.