In late 2019, 19 year old Aboriginal man, Kumunjayi Walker, was shot and killed by Northern Territory police constable, Zachary Rolfe, in the remote community of Yuendumu. Rolfe was charged with murder and two alternative offences of manslaughter and engaging in a violent act. In March, Zachary Rolfe was acquitted of all charges. Writer, Anna Krien has been following the story.