First: the new witness who saw him the day of the murder. I don't remember the details of her story, but I remember that it blows a whole in the prosecution theory if she is believed.
Second: the cell records don't match the prosecution theory. They are messed up. Cops need a different timeline than the one presented.
Add that to: habitual liar Jay is relied upon for everything and he has several contradictory stories.
That's enough to get me to vote not guilty