Wow, read thru posts. Lots of new things.
Looking at the video of GZ and I can now comprehend better why he scared Tray so much.
To a black teenager GZ resembled a white skinhead with his shaven head. More scary than a regular white dude.
And I do believe now there was a struggle for the gun and both hit the ground.
GZ wanted to make a citizen's arrest and drew/pointed his gun while way too close to Tray.
Tray thought he was going to shoot him on the spot and successfully lurched for the gun. GZ did not expect that a sane person will try to go for a gun pointed at him.
But Tray was a fearless 17 year old teenager(the kind that makes good soldiers) who expected to die anyway but think they live forever. Tray had not done anything illegal so why would somebody pull a gun on him unless he wanted to kill/harm him .
Tray was shot at VERY close range, not just close per LE leaks. Which I translate into possibly body contact with the gun barrel. It was a lucky shot that incapacitated Tray instantly and GZ crawled away from under Tray quickly. Not enough time for a lot of blood, may be just some minimal.
Why no blood on GZ from Tray? Unless you hit an artery close to the surface like a shot in the neck , it takes a couple of seconds for the blood to start flowing. Ever got a decent flesh cut on your hand , no lots of blood instantly. All IMO.