Detectives have charged the gunman who allegedly pulled the trigger in the mistaken identity shooting of uni student Marco Tapia.

The alleged shooter was among three more people charged on Tuesday over the violent attack in Tapia’s Glen Alpine home, south Sydney.

Strike force detectives arrested a 16-year-old boy and two men, aged 22 and 23, in Junee on Tuesday morning and took them to Wagga Wagga Police Station.

They were charged with murder, two counts of special aggravated break and enter and commit serious indictable offence-weapon and possess unauthorised prohibited firearm.

It followed the arrest earlier this month of two teenage boys, aged 14 and 16, who were charged with murder and other offences for allegedly staging vehicles and providing a weapon for the gunman.

Detectives will allege in court the three males – one allegedly armed with a pistol – entered the home and confronted Tapia, before he was fatally shot.

About 3.40am on Tuesday 1 September, emergency services were called to a home on Mount Sugarloaf Drive in Glen Alpine, following reports of a home invasion.

On arrival, officers located a man suffering a gunshot wound inside the house.

The man who has since been identified as 23-year-old Marco Tapia, died at the scene.

Detectives have since confirmed the wrong house was targeted.

Officers were told three unknown offenders left the home a short time before police arrival.

Local police established crime scene and commenced inquiries before the investigation was taken over by State Crime Command’s Homicide Squad under Strike Force Gareno.

Following further extensive inquiries, strike force detectives arrested the 16-year-old boy and two men in their 20s from 9am on Tuesday.

The two men were remanded in custody to appear at Bail Division Local Court 5 on Wednesday.

The 16-year-old boy was also remanded in custody and will appear at a children’s court on Wednesday.

Anyone with information is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au.