Philip Seymour Hoffman's death ... we have information about the days leading up to it -- including him falling off the wagon -- and the deadly strain of heroin that could be responsible for his passing. Plus, Woody Allen's daughter Dylan Farrow reaffirms her claim that he molested her when she was a kid -- and there's something interesting about Woody's reaction when he was asked about it on camera. While cops are confident they'll nail Justin Bieber for his alleged DUI -- the Biebs partied on by double teaming a stripper ... and we have the shocking photo.