Here is the scoop. Junta was worried that his kid hadn't followed him out. He went back in to see what was keeping his kid in there, worried about the kids who had been beating him up on the ice.
As he came through the doors and into the rink, Costin was to his side (right, I'm pretty sure). Costin circled around and jumped him from behind. Junta saw Costa raise his arm out of the corner of his eye, didn't know but thought he might have had something in his hand, and ducked down.
As Junta ducked, Costin's punch and the weight of Costin's body against Junta's left shoulder pushed Junta down on his bad knees, with them bent under him in sort of a frog position, with most of his weight on his right thigh.
Costin grabbed Junta's left wrist and wouldn't let go. Somehow Junta got over, and got his leg on top of Costa, who was lunging and kicking at him with his skates. Junta at this point gave him three punches, but did not slam his head against the floor.
Junta was trying to get Costin to quit trying to punch him, and the whole fight only took about 5 seconds...
One of the prosecution witnesses, Ron Carr, (think that is his name) basically supported Junta's version, which surprised the prosecution.
One of the children who witnessed the fight also supported Junta's version. Junta's son did as well, but I discounted his testimony, and I think, but am not sure, that the other kid was not one of the kids Junta took to the rink that day.
I hope Junta gets off with time served, because I do not think he was doing anything but defending himself, and was in a very difficult position. He couldn't remove himself (retreat) for two reasons. He has terrible knees that have both had surgery, and when one is heavy, on the ground, and has bad knees, one just doesn't hop to one's feet and run away.
Costin wouldn't let go of his wrist, making his escape from Costin and the kicking hockey skates difficult, if not impossible.
That is how I see it, anyway.