‘Railway Killers’: Son of Flying Squad detective pens book about father’s role in successful serial killer investigation

Maartje Tamboezer was raped and killed at Horsley railway station in 1986 by John Duffy and David Mulcahy, who would later become known as the "Railway Killers" Mark Edwards http://www.getsurrey.co.uk/news/surrey-news/railway-killers-son-flying-squad-12146571