John Cannan, convicted murderer and prime suspect in the unsolved disappearance of estate agent Suzy Lamplugh, died from natural causes at HMP Full Sutton at age 70. An inquest into his death has commenced, revealing that he succumbed to a ruptured abdominal aortic aneurysm. Cannan was serving a life sentence for the 1986 murder of Shirley Banks. Lamplugh, missing since meeting a client believed to be Cannan, remains unaccounted for, with her body never found. The inquest is set to continue, with further reports pending.