How do you know about the pace Brown was moving at? I think I missed that part.
RxT=D
While the time element is variable, all accounts were consistent to my knowledge that after Brown turned around and the final shot was taken was very short, a few seconds. It does not take but a few seconds to fire off 10 rounds, even with a pause in between two groupings.
The distance was determined as measurement from blood pooling to final resting location of the body. According to your posted diagram, this was approximately 22 feet. Taking into account that Wilson (despite the unreliable reports that Brown never moved, he obviously did) likely did not begin firing until Brown had gone roughly 2 feet (why would Wilson begin firing sooner than that?) so that gives us a pretty good estimate of 20 feet that Brown covered in under 5 seconds (which should be regarded as the slowest time it would have taken Wilson to fire 10 rounds in a rapid fire situation at singular target that is remaining in straight line moving toward shooter). I'm using these rough estimates to figure Brown was moving at an average of roughly 4 feet per second. This is equal to the average walking speed of an adult. By these estimations, this is the slowest pace Brown was travelling...with probability he was moving faster than that being pretty high as most cops can fire 10 rounds faster than 5 seconds. A more accurate estimation would be (using easily divided numbers) 21 feet traveled in 3 seconds, which would be 7 feet per second or almost double an adults average walking speed. Either way, these are estimates and I gave both a slowest and most reasonable estimate to provide a logical window that I would provide a logical estimate that has, IMO, a 90% chance of being correct and a 10% chance of Brown moving slower or faster. Feel free to dispute these findings if you would like. Considering the lack of on target shots, Wilson was likely firing at a rate of at least 4 rounds per second, which will result in more misses than hits but when in perceived life or death situation, one's instinct is to throw as much lead as possible down range and aim suffers as a result until target gets close. So considering a max fire rate could have been closer to 5 rounds per second in that adrenaline state, it is also possible Brown could have been traveling around an average of 10 feet / second. While it is possible Wilson could have fired at 1 round per second, resulting in Brown traveling at 2 feet per second, the number of misses indicates Wilson was likely firing at a faster rate. To me, while Wilson could have maintained better composure and thereby maybe only needing to fire 2 well aimed shots, the adrenaline and fight/flight instincts take over. Adding in the fact this was Wilson's first time discharging his weapon at a suspect (5+ year career) coupled with the documented misses, there is a greater likelihood that the rate of fire was above 2 rounds per second due to adrenaline and fight/flight overpowering the knowledge that less rounds per second yields better aim and less required shots.
Again, feel free to dispute my estimations. I'm trying to be realistic and not trying to skew things in favor of Wilson or Brown, but using the following facts:
Number of feet from blood pool to body: 22 (yes, I used 20 and 21 for ease of calculations, but the lower numbers favor Brown moving slower. If I had said 25' over 5 seconds, that would be 5'/sec as opposed to 20 feet over 5 seconds which is 4'/sec...so champ and his ilk have little to cry foul over)
Number of rounds fired: 10 (using rough estimate of 2 rounds per second, which is on the low end in this setting based on eye witness testimony combined with number of missed shots indicating lack of aiming and faster pull on trigger...again, using lower number to give benefit of doubt to Brown and his defenders).
So, 4 feet per second...or normal walking pace of an adult human. As I have stated many times before, why would anyone move toward someone with a gun like that? Especially a cop with whom you already fought with? Also take into account that the 4'/sec rate is from a standing position, which it usually takes at least 2 strides / roughly 6 feet for a guy taller than 6' / and over 1 second to reach that velocity. Taking into account the rate of acceleration, the probability is Brown was traveling faster than the average walking speed of a human, but he also would have a longer stride, therefore he may have had an average walking speed faster than 4'/sec in normal walking motion. Still, pretty stupid to move that fast toward someone you previously fought with and now has a gun pointed at you. Zero reason for Wilson to believe he was coming over peaceably at such a rate of speed.