Armed police spent hours outside a Flat Bush home after they were called to the Bezar Pl address on December 26. They would later find the body of Petau Petau - believed to be a Hells Angels prospect - inside the home.
Authorities arrived after a neighbour called 111 to report hearing a person in distress followed by gunshots.
At one point in the standoff, Armed Offenders Squad members "stealthily" used a ladder to prise open a second-storey window and bring out five people, including a child, a witness told the Herald at the time.
The suspect later surrendered peacefully and was taken into custody, police said.
Police do not have any other suspects in the case, Detective Inspector Tofilau Fa'amanuia Va'aelua of Counties Manukau Police said in a statement to the Herald after Fepuleai was charged with murder.
Both the murder and the methamphetamine for supply charges carry maximum possible sentences of life imprisonment.