Appreciate your math and maps, at least there is some form of factual basis to your conclusions. Have some questions related to these below.
I will answer your questions, doubt they will suffice though.
For one, Zimmerman's purpose and Trayvon's purpose would likely change their rates. To use any kind of uniform travel rate would be incorrect, IMO. We also don't know how long Zimmerman might've peered down the sidewalk on his way to get the address.
Two, I have a hard time assuming that they met at the exact intersection of the sidewalks. It's not unreasonable to me that they might have met futher up the middle sidewalk.
1. Am gonna download Google Earth and see if I can play along with your work. Until I have time to do so, can you guestimate the distance from the truck to Brandy Green's home via the two routes possible (sidewalk between and through to Retreat Circle and down)? Seems like it would be less than a quarter mile given the distance to the convenience store.
2. Can you pinpoint the timeframe when Trayvon was walking back towards Zimmerman per the 911 call?
3. Have you mapped out, using your walk rates and the 911 tape, the trip Trayvon would have taken up til Zimmerman lost him? If you've done this on another thread, I apologize, haven't seen every post on every thread.
Thanks in advance!