In 2017, Murphy was sentenced to 6 months in prison after pleading guilty to 28 charges including unlawful assault, aggravated burglary and making threats to kill. The charges related to a series of attacks on his former partner, Jill Scott, one of which involved him holding her down and burning her finger with a blowtorch. As a result of her injuries she had to have her finger amputated. Murphy blamed his actions on his addiction to the drugs ice and GHB.