The difference is 1.2m, that is close to 1.4m of elevation corretion.
I put File Browser on Brian’s server.
if you slide the transparency of the roof photo up/down, you will see that it is well aligned to the roof lanes
the angles and viewpoints are quite delicate to assess position and elevations, which is where the kml file comes in handy for comparison…
I think I did explain accurately the elevation correction.
When you superimposed the photo on the roof the photo is in the wrong geolocation because the roof is the wrong geolocation.
Let me prove this:
If you look on the East side of the building you will see the side of the building. That means the satellite picture is not perfectly top down. But inclined from the East. Also, by definition the edge the wall is vertical so any point on South East edge must have the same geolocation only with different elevations. But in this satellite picture it is not.
These are the geolocations of those reference points:
B6_SE_roof: 586778.46; 4523517.22
B6_SE_ground: 586779.86; 4523517.22
So which one is the right one? I consider the soil position to be the correct one and the roof position to be the wrong one. The roof geolocation is dislocated to the West by 1.4m in my measurement. That means the geolocation of the roof on that edge must be corrected 1.4m to East.
Crooks elevation is 3.8m in my estimations, so the correction must increase in the same proportion that results in 1.75m correction to East.
Since the correction varies with the elevation the superimposed picture is not correct at all points in the roof also, because the roof is inclined.
2 Likes
I disabled the 3d building view in my google earth pro configuration now and removed the absolute heights of the ground overlays.
this has removed the image distortions of the overlay images.
basically, this means that the overlays are now a vertical projection of the surveyor plane’s view.
I am including your coordinates as-is in my trajectories plotting, so there should not be too much interference from the different angles and perspectives.
for the coordinates you use for the point “Crooks”, is that his head or would that be the muzzle.
if not, what would you suggest for the coordinates of the muzzle of crooks’ rifle, and would you put that at 3.8m from the ground too, or at another height?
That elevation is for Crooks roof elevation. I will diferenciate the gun muzzle position and elevation and Crooks head position.
1 Like
cool.
it may have been that crooks started shooting at a roof lane more to the side of the AGR parking than where he was found dead.
so, if you could differentiate the muzzle positions from the roof lanes you think are reasonable, I can include these…
I had that impression too but after my detail analysis I came to the conclusion Crooks was in lane 20 when he fired the first shot. Since he had an angle to aim towards the stage, the rifle muzzle was half way into lane 21.
This is a screenshot from the Dayve Stewert video, about 1sec befor he pulled the trigger.
4 Likes
Here is the final results with altitude and height.
The geolocation in degrees and altitude were obtained by this site conversion:
GPS Visualizer: Assign DEM elevation data to coordinates
The precision is 0.1m in altitude.
| ref | longitude E (m) | longitude N (m) | latitude (deg) | longitude (deg) | altitude (m) | height (m) | height method | altitude + height (m) |
|---|---|---|---|---|---|---|---|---|
| RSBN_V3 | 586684.48 | 4523383.68 | 40.85692611 | -79.97151665 | 407.4 | 2.850 | pixel-degree conversion 1 fottage | 410.250 |
| NTD | 586691.16 | 4523403.54 | 40.85710427 | -79.97143464 | 408.1 | 2.850 | pixel-degree conversion 1 fottage | 410.950 |
| C3P | 586733.45 | 4523409.60 | 40.85715432 | -79.97093211 | 407.7 | 1.500 | guess | 409.200 |
| DRONE | 586719.64 | 4523375.42 | 40.85684794 | -79.97110066 | 406.9 | 119.000 | drone study | 525.900 |
| Corey | 586736.21 | 4523417.70 | 40.85722706 | -79.97089814 | 407.8 | 1.800 | guess | 409.600 |
| Source 5 | 586658.66 | 4523405.68 | 40.85712697 | -79.97181986 | 408.6 | 1.500 | guess | 410.100 |
| James_v3 | 586722.04 | 4523372.12 | 40.85681797 | -79.9710727 | 406.9 | 3.500 | pixel-degree conversion; altitude model SB | 410.400 |
| David_v3 | 586719.97 | 4523371.22 | 40.8568101 | -79.97109734 | 406.9 | 3.000 | pixel-degree conversion; altitude model SB | 409.900 |
| Trump_v2 | 586726.82 | 4523394.08 | 40.85701528 | -79.9710129 | 407.4 | 2.957 | 6 stairs of 8.25’+ pixel-degree conversion 1 fottage | 410.357 |
| Trump_MIC | 586726.64 | 4523394.28 | 40.85701706 | -79.97101497 | 407.4 | 2.837 | 6 stairs of 8.25’+ pixel-degree conversion 1 fottage | 410.237 |
| South Bleacher lower | 586722.47 | 4523376.15 | 40.85685428 | -79.97106701 | 406.9 | 1.500 | guess | 408.400 |
| TMX_v2 | 586740.37 | 4523498.02 | 40.85794999 | -79.97083764 | 407.8 | 1.500 | guess | 409.300 |
| Middle Bleacher NE | 586744.48 | 4523394.30 | 40.85701539 | -79.97080339 | 407.4 | 2.438 | 4 stairs of 8.25’ + guess | 409.838 |
| Dstew, bullet 1 | 586774.15 | 4523486.16 | 40.85783965 | -79.97043855 | 407.1 | 0.894 | pixel-degree conversion 1 fottage | 407.994 |
| Dstew, bullet 2 | 586775.89 | 4523486.19 | 40.85783967 | -79.97041794 | 407 | 0.486 | Dstew@1shoot - pixel-degree conversion 1 fottage | 407.486 |
| Dstew, bullet 3 | 586779.50 | 4523486.33 | 40.85784055 | -79.97037502 | 406.9 | 0.500 | guess upon fottage | 407.400 |
| Dstew, bullet 4to9 V2 | 586781.91 | 4523486.56 | 40.85784241 | -79.9703464 | 406.8 | 0.300 | guess upon fottage | 407.100 |
| Dstew, bullet 10 | 586775.11 | 4523488.07 | 40.85785673 | -79.97042692 | 407 | 0.100 | guess upon fottage | 407.100 |
| Dstew see Crooks | 586772.23 | 4523486.67 | 40.85784445 | -79.9704613 | 407.1 | 0.950 | pixel-degree conversion 1 fottage | 408.050 |
| source4, bullet 1 | 586693.00 | 4523528.92 | 40.85823332 | -79.9713953 | 408.3 | 1.400 | guess upon fottage | 409.700 |
| source4, bullet 2 | 586691.84 | 4523529.60 | 40.85823957 | -79.97140895 | 408.3 | 1.400 | guess upon fottage | 409.700 |
| source4, bullet 3 | 586690.60 | 4523530.21 | 40.85824519 | -79.97142359 | 408.3 | 1.400 | guess upon fottage | 409.700 |
| source4, bullet 4 | 586683.23 | 4523537.98 | 40.85831595 | -79.9715099 | 408.2 | 1.400 | guess upon fottage | 409.600 |
| source4, bullet 9 | 586682.84 | 4523539.08 | 40.85832595 | -79.97151437 | 408.2 | 1.400 | guess upon fottage | 409.600 |
| source4, bullet 10 | 586683.83 | 4523544.57 | 40.85837024 | -79.97151182 | 408 | 1.400 | guess upon fottage | 409.400 |
| Ross_V2 | 586683.91 | 4523543.33 | 40.85836408 | -79.97150106 | 408.1 | 1.460 | pixel-degree conversion 1 fottage | 409.560 |
| Crooks_muzzle | 586767.70 | 4523529.08 | 40.85822689 | -79.97050914 | 407.041 | 4.080 | pixel-degree conversion; altitude model B6 | 411.121 |
| Crooks_head | 586768.02 | 4523529.67 | 40.85823213 | -79.97050518 | 407.041 | 4.050 | pixel-degree conversion; altitude model B6 | 411.091 |
| South barn snipper 2 | 586763.45 | 4523360.11 | 40.85670541 | -79.97058311 | 406.9 | 7.466 | pixel-degree conversion 2 fottages | 414.366 |
| South barn snipper 1 | 586762.39 | 4523360.54 | 40.85670938 | -79.97059563 | 406.9 | 7.550 | pixel-degree conversion 2 fottages | 414.450 |
| SWAT officer Shot 9 | 586761.86 | 4523426.72 | 40.85730557 | -79.97059263 | 407.4 | 1.700 | pixel-degree conversion 1 fottage | 409.100 |
| Cruizer | 586793.39 | 4523525.12 | 40.85818848 | -79.97020489 | 406.2 | 1.200 | guess based upon cruize height | 407.400 |
I found an error in Ross position, 0.4m. It’s corrected now.
The Crooks position (1st shoot) was corrected for his head and the muzzle.
Here is the positions zoomed and the line of sights.
3 Likes
I just dropped a matching kml file on Brian’s server: //barf.bz/files/howdoiknowthisinfo/kml/vt.20240919.kml
if you download it, together with the //barf.bz/files/howdoiknowthisinfo/kml/images, you can browse through the overview:
2 Likes