Ever since that August day in 1922 when Michael Collins was fatally shot in an ambush at Béal na mBláth, controversy has raged over who fired the fateful shot - Dalton, O'Neill, Kelleher ... or the British Secret Service? Conspiracy theorists even question the motive - and whether it was deliberate or accidental? Was there a conspiracy among discruntled members of the Free State Government, or was de Valera behind it?

Renowned histiorian and author, Joe Connell, examines in detail the plethora of claims, counter-claims, admissions, and denials about an event that has spawned more books, perhaps, than any other single event in recent Irish history, to answer the question - who shot Michael Collins?