A Bikie with the body of his brother, who was killed at the Father's Day Milperra Massacre.

A Bikie with the body of his brother, who was killed at the Father's Day Milperra Massacre. Photo: Supplied

It was three decades ago that Linda Motton found herself caught in the crossfire of the deadliest bikie gang shoot-out in Australian history. Her life has never been the same since. 

Tuesday marks the 30 year anniversary of the Milperra Father's Day Massacre - the 1984 gun battle between the Comancheros and the Bandidos that left seven people dead, including a 14-year-old girl, and 28 injured.

In a story to air on 60 Minutes tonight, key witness Ms Motton, relives the bloody stand-off and the resulting death threats that plagued her for decades. 

"The noise was incredible": Linda Motton

"The noise was incredible": Linda Motton Photo: 60 Minutes

Ms Motton was sitting in her car outside the Viking Tavern pub when suddenly she found herself surrounded by a hail of bullets.

"My boyfriend and I were bike enthusiasts, " she said. "We mainly rode vintage motorcycles. Hearing there was a swap meet on at the Viking Tavern at Milperra, we decided to go. We'd been to heaps of such meetings. This was to be the first one ever held at the Tavern and, as it would turn out, the last.

"There were shots coming from everywhere. There was people ducking for cover, people reaching into cars for firearms. It wasn't very long before the windscreen of the car I was sitting in got smashed by a bullet and I had bits of lead pellet in my face and glass, I was covered in glass from the windscreen. The noise was incredible."  

As she crawled under the car for cover, she began taking photographs which, unbeknown to her at the time, would become crucial evidence at the various murder trials.

"It wasn't just the shots which were coming from everywhere," she recalled. "There was people smashing each other with lead pipes, with baseball bats, with chains, people screaming in agony. It all happened so quickly that you'd blink and suddenly there was three bodies on the ground."

She added: "There were so many children there, there was people throwing their children over the fence. There was a pregnant woman lying in the middle of the car park with her husband who was with me and he was wanting to, to go and get her."

In the years that followed, Ms Motton was hounded by anonymous threats, warning she would die because of her photos.

She said she had decided to talk on the eve of the anniversary as it was "important to remember the innocent people"  killed or injured. "It was a family day and I think the victims have been lost in it."

The full interview will screen on Channel 9's 60 Minutes tonight.