It 's not clear whether the name Brian Douglas Wells meant anything to the Australian schoolgirl , but Peters had borrowed the name of an American pizza delivery man who was killed after a collar bomb fixed to his neck exploded in 2003 . Man who attached fake collar bomb to Federal or State teen sentenced . Peters to serve 2003 of 13-year sentence . Police took 10 hours to dismantle the device around Peters neck . During sentencing , Judge Peter Zahra said Madeleine Pulver 's ' motivation was extortion .
Man who attached fake collar bomb to Federal or State teen sentenced . Peters to serve 2003 of 13-year sentence . Police took 10 hours to dismantle the device around Peters neck . During sentencing , Judge Peter Zahra said Madeleine Pulver 's ' motivation was extortion .