<p>LOS ANGELES (AP) - A former police officer trying to prove her innocence in a 20-year-old murder case sued the "Dr. Phil" show, claiming false imprisonment before the taping of a show led to injuries and the amputation of her leg. The suit filed Monday in Superior Court claims Laurie Bembenek was hurt in 2002 when she tried to escape from an apartment where she was taken and kept by producers.</p>