What if everything we know about one of America's darkest days is wrong?

Tragedy unfolded on April 19, 1995, when a massive bomb exploded in America's Heartland, killing 168 people, including fifteen children. History says the Oklahoma City bombing was lone wolf terrorism. But haunting fresh evidence points instead to a neo-Nazi plot in which the FBI played a hidden role.

The FBI launched the biggest manhunt in its history for two suspected bombers. Yet they never captured the other suspect, known only as John Doe 2, who rode next to McVeigh in the bomb truck. Soon, the FBI canceled the search, saying eyewitnesses who saw John Doe 2 were mistaken.

None of this rings true to award-winning journalist Margaret Roberts. How could twenty witnesses be wrong?

More troubling clues lead Roberts to reopen the mystery of John Doe 2 before the thirtieth anniversary of America's deadliest domestic terror attack. Blowback chronicles her shocking discoveries, including journalism's only face-to-face prison interviews with McVeigh coconspirator Terry Nichols. Roberts puts the puzzle together after a whistleblower steps forward, though one burning mystery remains. Is John Doe 2 the FBI's guilty secret?