Tell me if you were told a different series of events than this:
The first guy chased Kyle while yelling threats about how he was going to kill him, cornered Kyle, then lunged at his gun before Kyle shot him. Kyle then ran towards police while a mob pursued him, throwing stuff at him including a heavy rock that hit him in the head knocking him down. The second guy ran up to Kyle while he was on the ground about was about to club him in the head with a skateboard before Kyle shot him, and the third guy ran up on Kyle and pointed a gun at his head before Kyle shot him.
Care to elaborate on why you think the trial was a sham? Do you disagree that this was self defense? Or are you simply upset that he had a gun?