the killing of leeds university chef sarah lawrence is now being treated as suspected murder , north yorkshire detectives said . however detectives said they had not found any proof that the 35 - years - old , who went missing on 18 marches , was dead . her father peter lawrence made a strong appeal to his daughter to help him ten moments after she disappeared . his plea came at a news conference held shortly after a £10 , 000 reward was offered to helped locate miss lawrence . crimestoppers said the sum they were offering was " much higher " than usual because of his involvement in the case .
Claudia Lawrence is 35 years old.