How far does that place it from the house TM was staying? I’ve never seen that distance reported.
As the defense pointed out during the trial, there was a four minute period of time during which time Martin would have had to travel some 400 feet to make it back to his father's girlfriend's house. Martin could have "de-escalated" the situation -- the "situation," as he apparently saw it, since he allegedly complained of having been watched by a "creepy ass cracker" -- had he wanted to. He evidently didn't want to. He evidently decided he wanted to teach the "cracker" a lesson.
Martin brought his fists to what turned out to be a gunfight. More fool him, and all on him.

Key:
A The Clubhouse for Retreat at Twin Lakes.
B Community mailboxes.
C Where George Zimmerman parked his truck.
D Brandy Greens Townhouse, where Trayvon was staying.
E Zimmerman stopped and completed his 911 call for approximately eighty seconds.
F The fight and shooting took place in this area.
G Eyewitness Johns townhouse.
Here is the page it came from with more maps.
Somewhere between 80-100 yards.