A deadly siege in Sydney's southwest was sparked by a feud over an unfinished sign, the victim's family says.
Brothers Michael, Terry and Mark Bassal arrived at the Ingleburn industrial estate shortly before 11am Monday for a planned meeting over an unfinished order for their construction business.
"We understand that, as they arrived at the premises, they were immediately shot at and Michael Bassal died almost instantly," the family said in a statement on Tuesday.
Wayne Williams, 33 was reportedly armed with an assault rifle when he allegedly opened fire inside the Heald Street warehouse.
The bloodbath triggered a tense six-hour police siege, which ended only after he turned the gun on himself and three hostages were freed just after 5pm.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The shooter's alleged links with the Finks bikie club has prompted the Bassals to distance themselves from any criminal undertones.
"Any speculation by the media that there was something more, and particularly any alleged criminal association between the deceased and the gunman, is nothing but speculation and we are instructed that this is completely unfounded," their lawyers said.
The Bassal brothers were involved together in a construction business, the statement said.
"They had contracted with Inline Signs, the business which operated at the scene of the shooting, to supply signage for a property they were developing. They had paid for that signage, but the work had not yet been done."
A 52-year-old man and a 30-year-old woman have been charged in connection with Monday's shooting.
