Investigators have no suspects in the killing of a pregnant 23-year-old Amish woman inside her home in rural northwestern Pennsylvania, and are appealing for tips from the public to help solve the crime, a state police spokeswoman said Wednesday. Rebekah A. Byler was the victim of a criminal homicide inside her home on Fish Flats Road, a few miles outside Spartansburg, Trooper Cynthia Schick said. A message seeking comment was left for Crawford County Coroner Eric Coston.