I agree that Ross was too far away to hear the crack, so the Ross measurements for shots 1-8 are all boom times. It does look like the Cruiser was just behind the line of fire so it may not have been able to hear the initial crack from the barrel. But if it did, it would have come only 3 ms before the boom.
Correct. The booms are masked. So I had compute to compute them, as explained in the first three minutes of the Part 3 video.
See my response to Chris M. for an explanation of this. Iâm guessing that the shooter raised up onto his knees between shots 3 & 4, causing a slight change in the dynamics.
If you would like to believe that there was someone in the attic just underneath the shooter making those first three shots, that is certainly your perogitive. To me, however, that seems like a ridiculous proposition.
I donât know why the Cruiser waveforms all look so similar, but I have no reason to suspect any editing was done to those three audio tracks. The gunshot timing in the Cruiser audio agrees with the other four recording sources. If it did not agree, then I would be suspicious. Also, I will point out that the three microphones in the Cruiser were inside the vehicle whereas the other four recording sources were obviously out in the open air. So, all sounds are being âfilteredâ by the body and glass of the Cruiser before reaching the microphones. Thatâs why the shots all sound muffled. They are. But I did see the screenshot posted here that shows the Cruiser waveforms being remarkably identical, so I can certainly understand that angle of investigation.
Mike Bell discussed the final impact of the 1st bullet in the JCB liftâs hydraulics in this analysis: https://youtu.be/LI9uxEBlhUI?t=255
at this timestamp he starts discussing that the straight line of sight from Crooks on the roof to Trumpâs ear continues to the hydraulics of the JCB liftâŠ
This is why I use the JCB liftâs hydraulic beam as the reference end point of the 1st bulletâŠ
Roger keeps pushing you to believing the vent hypothesis, but this simply does not make senseâŠ
Based on Rogerâs last 3D CAD model, ref. 884-5, he places
Trumpâs ear at 1337.335 ft floor level + 11.76833 ft ear height = 1337.335+11.76833 = 1349.10333 ft = 411.2067 meters above sea level
the bleachersâ railing at 1336.32+12.21 ft = 1348.53 ft = 411.03 m above sea level
The interaction point between the bullet and the bleachersâ railing is 20 yards from Trumpâs position.
This would mean that the bullet would have dropped 0.57 ft = 6.8799 inches = 17.48 cm over 20 yardsâŠ
A drop of 0.57 ft at 20 yards is impossible if that bullet grazed Trumpâs earâŠ
About the dust cloud: it is only an assumption that the first bullet turned into a dust cloud. There is no hard evidence for this dustification, as it can as easily have bounced off the railing.
The only thing we can reasonably assume is that it did not penetrate the railing, as the public would have noticed that and we would have seen pictures of that by nowâŠ
first of all, I do not use the bleachers anywhere in my calculations. they are only included as visual support.
there is a specific point in the section ânon-human victimsâ that specifies the coordinates of the interaction between bullet 1 and the railingâŠ
I use as reference the impact on the JCB hydraulic lift and not the impact/interaction point on that bleachers.
the past 2 weeks, that railing impact point has shifted from âthe exact cornerâ to âbetween the belly and the right arm of the man wearing the blue t-shirtâ, so that is a very volatile and highly unreliable pointâŠ
meanwhile we have received drone footage from @rough_country_gypsy which shows the ground layout in full detail, and in my next kml, I will be using that version.
there may be discrepancies in coordinates depending on the maps used by google earth. I use the coordinates that match the google earth tiles timestamped 1985 (the default)
I will look into it while finetuning my kml file.
for the bleachers, I use the point at the left ground level as the reference (left when standing/sitting in the bleachers looking at Trump), and then I draw a 3d polygon at a certain bearing with a certain distance and depth.
the left side of the bleachers is the most important one, next the depth, then the height, and I do not care much about the right side of the left bleachersâŠ
thanks again for pointing this out. the next version of the kml will have the update.
We donât know if the AGR 6 window 3 was examined, but even if it âdoesnât openâ, 100% a temporary pane could have been used. You could make something that works in waaay less than a day with a visit to a hardware store and replace it with a permanent pane the night after the shooting.
I canât tell if the status after the shots is a curtain to hide them breaking down their rifle to go hide itâŠor bad photoshop.
Theoretically 2 parabolas belong to the same distance shot. However, these are not parabolas, since the air drag. Still there are two of them. Maybe the fence is not a problem.
Looking at the TMZ water stamp positon, this screen shot is made in the middle of the short video sequence. No shots have been fired yet, so no casings should be laying around⊠try watching the video with sound and you will understand what I meanâŠ
My math cleared it. I used 48" for the stage (8" standard for stage risers, not the 7.5 everyone keeps saying).
And I used the top foot of the window.
And everyone keeps using a 6 foot fence. Well, it wasnât was it? It leans AND someone relaxed the chain link along those AGR 6 sections and there may have been notches too.
I used the below picture to evaluate 6 feet. Let me know how heigh you think the fence is and I will put it into my CAD system. But one thing you have to add is the 2 foot floor difference⊠below you can see my dimensions
I would assume that the fence is the same height all the way down (6 feet), but if you have a different number, please let me know, I would be glad to use your numbersâŠ
Everyone keeps using a 6 foot fence. Well, it wasnât was it? It leans AND someone relaxed the chain link along those AGR 6 sections and there may have been notches too.
The trajectory of a projectile is not a straight line. The bullet flies upward first. The questions are: how far is the turning point and what is the maximal elevation?
Ah, now I understand, you assume the shot is going through the fence with notches.
But one thing that also needs to be considered, the riffle canât shoot from the top position of the window, so it makes the shooter even lowerâŠ
I am sorry, as much as I wanted to believe your hypothesis, I personally agree with Chris and would consider putting âshots from the windowâ back to the red zone (level 3).
I would however be glad to come back if you find any other convincing evidence.
First I did ffmpeg -i 1382_202407131806_Unit5-0.mp4 -vn -map 0:a:0 -ss 00:04:55 -t 00:00:10 dashcam-0.wav to get the critical 10s of audio from the first audio track.
I detected the report onsets in my DAW and chopped it up. With all the junk between deleted, it looked like this:
So, it seems like thereâs an amazing level of similarity, at least with the amplitude.
Next steps: I plan to look for another random dashcam video from YouTube with stationary gunshots so I can check if those shots look this similar. In other words, is this really as weird as it looks?
I havenât done anything with spectrographs or examined the differences in timing between the audio tracks yet.
I donât want to disturb you with the elusive problems of theorethical physics. Textbooks say the air drag is proportional to some function of the speed. It is first power in some cases and second power in some other cases. But actually it is something between 1 and 2. Now, how to fit this with dimensional check? The left side and the right side of an equation must have the same dimension.
Anyway, we should be able to calculate the minumum and maximum elevation of the trajectory with different rounds he might use.
