In my mind, that case was closed last month. Please refer back to the posts here in this topic from 24 to 30 September. Three independent citizen investigators, all looking at gunshot timing data, came to the conclusion that shots 1-8 were fired from the same location. Look at posts by @offtheback @vt1 and @greg_n such as:
ref1
ref2
ref3
The speed of sound is 1.2 feet per millisecond. So, for one of the shots to be “off” by 25 ft there would have to be a timing shift of 21 ms. I’m confident that I was able to discern gunshot timestamps to within 1 ms of accuracy, so there is no way the data was off by 21 ms.
Only one thing can be chosen as “ground truth”, so both of those initial conditions can’t be made true. Whether shot 1 or shot 4 is chosen as ground truth doesn’t matter - all 8 shots resolve to the same location.
All seven of the data sources have provided consistent results that agree with each other. Therefore, I have not seen any evidence that they had been tampered with - except, of course, for the remarkable similarity between cruiser waveform shapes. However, if there was something altered with the cruiser audio, what could possibly have been accomplished by that?
The timing values would all have to be tweaked by several ms to accomplish moving the gunshots by over 20 feet. I’m not inclined to work out the math myself as it seems like a waste of time.
Since DJStew and TMX were moving during the gunshots, I have experimented with different movement paths for them. I have not experimented with tweaking the gunshot timing values. To reduce uncertainty, I now place more trust in the results from the recorders that were stationary.
There is no way for me to do that.
Okay. I added a new tab to the “Audio Timestamps v4” spreadsheet available at File Browser
The tab is called “Booms” and it has the time-aligned boom values that I use for plotting the TDOA hyperbolas.
Why not? Are you merely suspicious, or have you actually found something in the timing of the gunshots that has been tweaked to throw us off?
Yes. Those recordings pick up both direct gunshots and the delayed versions through the speakers. So, that needs to be kept in mind when analyzing the audio data.
If the gunshot timestamp evidence had pointed to more than one shooter, we would have been happy to break the news on that. However, no solid evidence points in that direction, only speculation and wishful thinking. Sorry.