Homicide Squad detectives have charged an additional two men as part of their investigation into a fatal shooting in Glenroy in March.
An 18-year-old Campbellfield man was arrested in Broadmeadows on Friday, 14 June and subsequently charged with murder.
He appeared at Melbourne Magistrates' Court today and was further remanded to Monday, 26 August.
A 48-year-old Thornhill Park man was arrested by police in Thornhill Park on Thursday, 13 June.
He was interviewed by investigators and subsequently charged with accessory to murder.
He was bailed to appear at Melbourne Magistrates Court on Thursday, 20 June.
The 18-year-old Campbellfield man was previously arrested and interviewed by police on Friday, 19 April.
The 48-year-old Thornhill Park man was arrested and interviewed by investigators on Tuesday, 7 May.
At the time, both were released pending further enquiries.
With the assistance of the Special Operations Group, a 40-year-old Newport man was arrested in Wandong on Friday, 19 April.
He was charged with murder and prohibited person possess firearm.
He was remanded to appear at Melbourne Magistrates Court on Monday, 26 August.
The charges follow an incident in Glenroy on 29 March where a man was fatally shot.
Emergency services were called after a 33-year-old Broadmeadows man was located injured on Justin Avenue shortly after 4.30am.
Medical assistance was rendered, however he died at the scene.
Police will allege the parties involved were known to each other.
