Bricks thrown through windows of a northwest suburban school prior to an appearance there by an anti-gay activist had threatening notes attached, police said today. The bricks were thrown at Christian Liberty Academy early Saturday morning, apparently in protest of Scott Lively, an anti-gay activist, who spoke there later that night during a banquet hosted by Americans for Truth Against Homosexuality. A note attached to one brick read, "This is just a sample of what we will do if you don't shut down scott lively and AFTAH (expletive) scott lively Quit the homophobic (expletive)!" Another brick had "Shut down Lively"...