70 yards is much closer to the truth, than 700. He was less than 100 yards from home - and he was walking AWAY from home in order to confront Zimmerman.
On the other point, I think Tracy was taken to his son's body on the 27th.
Dick Gregory was claiming that the police had the body for 3-days as a John Doe in the morgue and didn’t bother to tell the father, who had reported him missing. Gregory seemed to think they were stealing his organs for 3-days.
In fact, the police visited the father the next day, the same day he reported his son missing, and had him identify a photo of his dead son.
But still, police presence yards away and a missing son and it didn’t occur to Tracy Martin to find out what was going on?