The series has several follow-up episodes entitled "After the First 48"—detailing the trials of those accused in previous episodes—and the aftermath of victims' survivors. "" follows the same story format as the original series. "The Killer Speaks" depicts convicted felons as they describe their crimes through their first-hand accounts. The latest spin-off, "Marcia Clark Investigates: The First 48," follows a similar story format but focuses on highly publicized cases such as those of Casey Anthony, Drew Peterson and Robert Blake, presented by O. J. Simpson trial prosecutor Marcia Clark.