The only person saying that TM attacked, slammed GZ's head into the concrete, and beat him about the head and face upwards to 25-30 times is the defendant himself.
The medical evidence has not supported the extent of GZ's recounting of the episode. It is also fairly obvious (no wounds on any part of either GZ's hands, legs, shoulders, or arms.) He did not try to fight fair...if there even was a "fight."
It is IMO, GZ grabbed TM, then TM either pushed off, elbowed or punched GZ in a third effort to get away from the creepy following man. At that point, it is IMO, that GZ slipped in the wet grass, while pulling TM down with him. And, that the scrapes GZ got come at that time. It is also IMO, that TM may have then tried to hold GZ down so that GZ could not get out the gun that, IMO, TM saw at some point in time before or as John Good came outside.
It is alo IMO that John Good said he couldn't tell if GZ was wearing Red or White and prior to that whether the were dogs fighting. Yet, in the dark John Good says he could see that the darker completed person was on top...even though he states he witnessed this from the side.
Also, IMO, I find it very difficult to believe that poor GZ who was in fear of his life could push a nearly dead TM off and nearly five feet away but couldn't get out from under TM when he was stilll alive. GZ outweighed TM by a good 40lbs. All IMO.