In 1955, David Astor, editor of "The Observer", Ian Gilmour, editor of "The Spectator", John Grigg, editor of "The National and English Review" and Sir Lynton Andrews, editor of "The Yorkshire Post", formed a delegation to petition the Home Secretary for a new inquiry because of their dissatisfaction with the conclusions of the Scott Henderson Inquiry. In the same year, barrister Michael Eddowes examined the case and wrote the book "The Man on Your Conscience", which argued that Evans could not have been the killer on the basis that if he were there were a number of extraordinary coincidences with his crimes and Christie's, most notably that two strangler murderers, who both used a ligature to kill their victims, had been living in the same property at the same time, unknown to each other.