A Sydney woman charged with murder following Friday’s alleged fatal samurai sword attack is "distressed" following her arrest and has never previously been in jail, her lawyer says.

Police allege that Hannah Quinn, 23, was a minor player in the violent death of Sydney rapper Jett McKee at Forest Lodge in Sydney's inner west last week.

Sydney hip-hop artist Jett McKee, who performed under the name Scepaz, has been identified as the victim at the attack at Forest Lodge. Credit:YouTube

The Herald understands that Mr McKee, 30, had attempted to rob the home where Ms Quinn and her boyfriend Blake Davis, who has also been charged with murder, lived together in Forest Lodge when an altercation allegedly took place.

Mr McKee allegedly hit Mr Davis in the face with knuckle dusters, and he took off into the street.