All the evidence indicates that Martin had created a distance of separation between them, but then came back to Zimmerman to confront him.
Exactly what happened at that point may not be entirely provable one way or another, but I think it seems pretty likely that at some point Martin had the easy opportunity to get back to his home, but chose not to.
It’s socialist frauds like this PATHETIC HAMBURGER MUNCHER that jumped to the wrong conclusion from the getgo to try and score political points for the left by making this into a race thing when race was not what it was about. As the evidence comes out, the PATHETIC LEFT once again shows what a bunch of miserable lying scumbags they are, as always.