Police seek clues in youths deaths(Continued from Page 1) probably were forced to leave the fast-food restaurant in a car owned by Miss Friedt. The car was found early Saturday in Speedway. All of the victims were believed to have been wearing their brown and orange uniforms when they vanished.An off-duty restaurant employee, Brian Kring, 17, told police he discovered the restaurant's back door standing slightly open when he passed it at 12:15 a.m. Saturday. Normally, he said, it would have been locked from 11 p.m. on.Investigators said Kring told them he found the cash drawers and Miss Shelton’s jacket on the floor and the manager’s office ransacked.Two empty currency bags and an empty roll of adhesive tape lay next to an open safe in the manager’s office when police arrived. Probably less than $500 was tak*» in theholdup, authoril.as said.None of the families received ransom demands and no witnesses to the abduction werefound.“It just doesn’t make any sense. They have got their money and they made their escape. Now why the devil don’t they give back our children?” Carolyn Friedt, Jane’s mother, said earlier Sunday.