Breaking the Cycle | Sunday on 60 Minutes

Four years ago, a gunman opened fire at Oxford High School about 40 miles north of Detroit. >> My son's texting me and saying they're shooting me. Okay, now I'm going to let >> He was sentenced to life in prison.>> But prosecutors argued he wasn't the only one to blame. Do you think his parents failed him. >> Yes.This kid was asking for help at every level and he didn't get it and he did something horrible. ...