Looking at Mrs.Markhams testimony, sworn testimony. She states that she was walking South towards Jefferson.When asked about the time she said "It was a little after 1.." and " I wouldn't be afraid to bet it wasn't 6 or 7 minutes after 1". Looks like, at this point she had not arrived at the bus stop area so that testimony is not very clear on timings. And she doesn't actually put a precise time on the shooting. She said "yes,this man shot the Policeman" There does not appear to be any reference to the actual time of the killing.
I have tried this serveral times in the past, but so far no LNr has even tried to come up with a plausible scenario for Markham still being at 10th/Patton at 1:14 or 1:15 when she testified she left home "a little after 1" and the one block walk from her home on 9th street to the corner of 10th street and Patton would have taken her only 2, perhaps 3 minutes. Markham estimated in her testimony that she took the 1.15 bus to work every day. And before you go there, yes I know that according to the bus schedule (which btw nobody has ever been able to show me) there was a bus at 1.12 and one at 1.22. It actually doesn't matter which bus Markham was talking about, because a walk of two blocks to the bus stop would have taken her no more than 6 minutes. So, if she left home "a little after 1" she would have easily been at the bus stop at around 1.15 and thus not at 10th/Patton. In other words, Tippit must have been shot earlier than 1.15, most likely around 1.06, because otherwise Markham could not have witnessed it.
The same thing goes for Bowley. He arrived after Tippit was killed. In his affidavit he said he picked up his daughter at R.L. Thornton School in Singing Hills at "about 12:55". School bells, in my experience, have a tendency to ring at the correct time every day! Now, let's also not forget that, after picking up his daughter, Bowley was also going to pick up his wife from work, to go on a family holiday and thus had every reason to be on time and be aware of the time! The drive from the school to 10th/Patton is about 7 miles long and takes roughly 13 minutes, depending on the route, making it absolutely possible and plausible for him to arrive at 10th street at 1.10 pm, like he said he did in his affidavit.
But even if we are kind to the LNs and accept that Bowley didn't pick up his daughter on time (leaving her waiting for 5 minutes or longer) and did not leave the school until 1 PM, he still would have arrived at 10th/Patton at 1:13, which of course would have been prior to the shooting of Tippit at 1:15, as the WC narrative claims.
These two timelines alone justify, IMO, the conclusion that Tippit was in fact shot before 1:10 pm, which makes it nearly impossible for Oswald to have been there. But perhaps the LNs can provide a plausible scenario for these two timelines to be wrong...? I'll wait and see, but I won't hold my breath.