PD James claims to have solved 1931 cold case murder
Crime writer declares 'absolute conviction' that she has identified real-life killer. A murder mystery that has remained unsolved since 1931 and has baffled some of the sharpest minds in detective work and crime writing has been revisited by novelist PD James, who says that "a solution to the mystery came into my mind with the strength of an absolute conviction".
Makes for very interesting reading. See:
http://www.theguardian.com/books/2013/oct/28/pd-james-murder-julia-wallace