Let's hear from Earlene Roberts herself.
At 5.03 minutes in this timeline special Roberts tells us Oswald entered the rooming house
after 1 PMShe testified he was in his room for about 3 to 4 minutes, or as Bill Brown misrepresents it "just long enough to grab a jacket".
If true, this means Oswald did not leave the rooming house until 1:04 or 1:05 PM, after which Roberts saw him standing at the busstop.
The fastest walk, short of actually running, from the rooming house to 10th/Patton takes roughly 12 minutes.
If Oswald waited at the busstop for just 1 minute, he would get to 10th/Patton no earlier than 1:16 at which time Tippit was already declared DOA (at 1:15) at the hospital.
Even if Helen Markham left her home at 1:06, it would have taken her no more than 2 minutes to walk one block from 9th street to the intersection of 10th/Patton. If Tippit was killed at 1:14, as Dale Myers suggests, or at 1:16 as the WC believed, are we to believe that Markham arrived at 10th/Patton at 1:09 or 1:10 and waited for at least 5 minutes to watch Tippit being killed?
How in the world, would Oswald be able to kill Tippit any time later as 1:10 (when Markham arrived at the intersection) if he was still at the rooming house at 1:04?
Let me guess;
Roberts was wrong in her time estimate, Oswald really came in before the 1 PM news started
Markham was wrong in her time estimate, she actually left her house to catch her regular bus much later than she said
Bowley's watch was wrong (which means he failed to pick up his daughter from school at the right time)
All the hospital clocks were wrong
DPD officer Davenport watch must also have been wrong as he confirmed the DOA at 1:15 twice in official documents.
Being declared DOA at the hospital is not the same as time of death
And Oswald could have been transported to 10th/Patton in a car for no known reason and by a person who never came forward.
Now what are the chances of all this coincidences happening in one case at the same time?