A prisoner, once described by a judge as a "chronic, high-level nuisance", menaced his late brother's partner from behind bars with a letter that warned hell would rain down upon her once he was released.
Matthew John Millard's latest stint in Canberra's jail began in July 2018, when he stole an elderly woman's mobility scooter and set his dog on a police officer who came to his Rivett home to question him.
