I don't think it will go to trial, after the judge reviews the evidence and realizes that the evidence they have supports Z's story of what happened then it will be dismissed. There simply isn't enough evidence to go to trial for a 2nd degree murder charge IMO, but who knows things weirder have happened before. Martin's own mother said she didn't think Zimmerman killed her son maliciously at first, but after speaking with counsel she said she believed that Z got out of his truck with intent to kill her son. Three ring circus, media lawyers, and the NAAcp.