Scott Weiland has lived a public life filled with ups and down, struggling with addiction and alternate musical successes and failures, but as he reveals in his new memoir, difficulties began far before he became a rockstar. In excerpts from "Not Dead & Not For Sale," published in Spin, the Stone Temple Pilots grunge rocker details his struggle with heroin, his artistic compromises and, most harrowingly, the time he was raped at just 12 years old.While growing up in Ohio, Weiland remembers a "big muscular guy, a high school senior...