http://www.pbs.org/wnet/nature/crimescene They are among the most reliable witnesses to a crime -- expert in their testimony and bulletproof in their account. Yet they never utter a single word. They are the animals, plants, and insects that are being recruited by a special breed of forensic scientists to solve the most seemingly impenetrable of crimes. Here, a forensic entomologist uses the life cycle of flies to bring a killer to justice. "Crime Scene Creatures" airs Sunday, June 1 at 8 pm ET on PBS (check local listings), part of the 26th season of the Peabody and Emmy award-winning series produced by Thirteen/WNET New York for PBS. Major support provided by Canon U.S.A. Inc., Toyota, and the Corporation for Public Broadcasting. For more information, visit http://www.pbs.org/wnet/nature/crimescene