Here’s the thing...it really is unclear to me how much interaction Martin had with GZ. Did matin peer in the car? Did GS follow him. How long did he follow him. Was any of it in lighted areas.
GZ was following him so could he see the gun...especially if they are high as a kite and paranoid.
Etc.
But even if he couldn’t see the gun until the tussle...a person can feel threatened without a gun.
If you know nothing about Martins background and think he is just an innocent kid going to the store to get tea and skittles...it’s not so far fetched to think somebody was following him and it scared him.
Of course WE know that he wasn’t just an innocent kid but what does the Jury know?
If Martin was scared, he would have entered the town home (which he reached earlier, according to goiter-neck) instead of coming back to look for Zimmerman.
Of course. But there's no indication TM shared GZs "fear" in any way. He was playing up the thug show not just for GZ but that precious little thing he was on the phone with. If Martin was afraid he would have gone home.