The bomb shelter - 9

The past never rests easy in Arizona. Forty years ago, a Phoenix reporter was killed by a car bomb in one of America's most notorious crimes.

Three men went to prison - but was there more to the story of Charles Page's assassination?

More than three low-level players? Did a kingpin order the hit and get away with it? And what was the real motive? Despite the work of teams of journalists and law and legal professionals, no one yet knows why.

It's a case custom-made for David Mapstone, the historian-turned-sheriff's deputy. And suddenly Mapstone's boss, newly re-elected Sheriff Mike Peralta, promises to reopen the investigation into the only murder of an American journalist, in the US, in modern times.

Why? The promise triggers new murders.