You are swallowing the prosecution Kool Aid there, Fee.
There is NO evidence to suggest that the "following" continued after GZ was told that it wasn't necessary for him to observe where TM had gone. Evidence suggests that this is in fact the point where GZ began to return to his vehicle.
GZ claims he was returning to his SUV before TM challenged him verbally and punched him. There is no witness to back up GZ’s claim. The only possibility is the arriving officers who took a picture of both men on the ground. Where GZ was laying vs location of his SUV and TM girlfriend’s father’s condo may give a clue on who is telling the truth. Jentel’s testimony said that TM per cellphone conversation said he was being followed by GZ. Despite her clumsy performance, GZ attorney could not shake her story. What happen after that, only GZ version is available, because TM is dead and no other witness saw otherwise. Now it is all down to forensic. Location of the two men, the SUV and TM girlfriend’s father’s condo unit.