Sources: Jackson showed signs of IV drug use

When Michael Jackson collapsed at his rented mansion last month, the singer's arms were riddled with marks and their veins had collapsed -- both characteristics found in intravenous drug users, sources told CNN on Tuesday. The revelations add to the speculation that prescription drugs played a part in Jackson's death on June 25. The exact cause is pending toxicology results that aren't due for at least another week. A source involved with the investigation into Jackson's death told CNN that ...