Richard Osman has done some detective work and discovered his ancestors were amateur sleuths like the characters in his crime novels.
Osman, whose debut The Thursday Murder Club has sold a million copies, has learned that his own relatives were at the centre of one of Brighton’s most notorious murder cases in 1831.
While making Who Do You Think You Are? he found newspaper reports telling how his four-times great-grandfather Gabriel Gillam discovered clothes and a body around two miles outside Brighton.
