The remains of a small helicopter used in a Miami prison escape attempt lie inside the yard of the Metropolitan Correctional Center Monday. The crash left former powerboat champion Benjamin "Barry" Kramer with a broken right leg and pilot Charles Clayton Stevens, 34, of Gold Beach, Ore., with two broken legs and facial injuries. Kramer, who is serving a life term on drug charges, had leaped onto the craft when it swooped into the exercise yard. Moments later, the helicopter's rear rotor became entangled in the 12-foot fence. Kramer and Stevens were in guarded but stable condition Tuesday.