If you were one of the jurors would you believe the boy is guilty or not guilty?

I realize the plot holes in the Juror being not guilty. The old guy might have had a stroke, the old woman could not see very well.... I thought though that the fact that the boy couldn't recall the movie's name or who he was with (his alibi) makes me really question his innocence. That combined with the boy actually shouting “I’m gonna kill you" makes me think there is more evidence against him than for him.