A "cowardly" gunman who murdered three people and killed another during a drug-fuelled shooting spree across Darwin will spend the rest of his life in prison with no parole.
Benjamin Glenn Hoffmann pleaded guilty mid-trial in November to intentionally killing Hassan Baydoun, 33, Michael Sisois, 57, and Rob Courtney, 52, and the manslaughter of 75-year-old Nigel Hellings, on June 4, 2019.
The 48-year-old was sentenced in the Northern Territory Supreme Court on Thursday to three life sentences for the three murders and 15 years for manslaughter, with Justice John Burns refusing to set a parole date.