Jamie Pettingill avoids prison time after charged with armed robbery . Pettingill threatened to slice off the face of one of the people he robbed . Judge Sandra Davis did not jail Pettingill , due to fears over his surname . Pettingill 's father , Trevor , linked to infamous Walsh Street murders in 1988 . The Pettingill family inspired Australian underworld film , Melbourne .
Jamie Pettingill avoids prison time after charged with armed robbery . Pettingill threatened to slice off the face of one of the people he robbed . Judge Sandra Davis did not jail Pettingill , due to fears over his surname . Pettingill 's father , Trevor , linked to infamous Walsh Street murders in 1988 . The Pettingill family inspired Australian underworld film , Animal Kingdom .