BBC News Published image captionDespite numerous appeals, searches, arrests and interviews, Claudia Lawrence's case remains unsolved A fresh appeal for answers about missing Claudia Lawrence has been made on the eve of the anniversary of her disappearance. The chef, 35, failed to arrive for work at York University on 18 March 2009. Police believe she was murdered despite her body never being found. His friend Martin Dales said there were people "at large" who had information. No-one has heard from Ms Lawrence since she called her mother Joan on the evening of 17 March 2009. She failed to arrive for her job at Goodricke College the following day and was reported missing by her father.