I feel uncomfortable about jury duty

I have been asked to do jury duty. As I follow a Buddhist philosophy of Ahimsa, no-harm, I feel conflicted. If I vote guilty, and the defendant is not, I would feel guilty myself. If he/she is guilty, and I vote to acquit, likewise I would feel guilty. So I will be asked to be excused on religious grounds. Is this a valid reason for me to be excused? Thank you, Thomas Ramsay.