A US judge has ordered the immediate prison release of Brendan Dassey, whose case featured in Netflix's Making a Murderer documentary. The Wisconsin man's murder conviction was overturned this summer, however, prosecutors are appealing. The 27-year-old, who has learning difficulties, and his uncle Steven Avery were convicted of murdering a young woman, Teresa Halbach, in 2005. Avery and Dassey, who was 16 at the time, were sentenced to life in prison.