A FATAL gangland shooting in Wetherill Park on Friday that left one man dead and a teenager fighting for life is believed to be linked to notorious street gang The Last Hour.

Antonio Hermiz, 20, was killed when he was shot in the head in front of horrified onlookers at the popular park two days before Christmas while 19-year-old Ronaldo Odisho was rushed to Liverpool Hospital with a bullet wound to the chest where he remains in a stable condition.

The gunman is still at large.

media_camera Forensic police comb the Lizard Log park where the shooting took place. Picture: Adam Taylor media_camera Shooting victim Antonio Hermiz.

Police, who were aware of the duo before Friday’s deadly incident, have labelled the incident “gutless”.

“I was appalled that there were up to 10 people in the park at the time of the shooting; these are people who were going about their business, enjoying time together before Christmas,” Fairfield Detective Superintendent Peter Lennon said.

media_camera Police at the scene after the shooting. Picture: Seven News

“It is unacceptable that these people have been put at risk in what is — in reality — an incident I’d describe as appalling.”

On Friday afternoon, the two men are understood to have travelled to Lizard Log park in a car together, when a second car arrived and opened fire on them. Both vehicles fled the scene, leaving Hermiz’s corpse behind.

The Daily Telegraph understands both Hermiz and Odisho have ties to Assyrian gang The Last Hour (DLASTHR), which is said to be responsible for shootings, fire bombings and standover tactics in the Fairfield area over the past 12 months.

media_camera Police are now investigating the shooting’s links to The Last Hour gang. Picture: Adam Taylor

The Last Hour is in an increasingly violent conflict with a splinter group, The True Kings, over control of the drug trade in Fairfield, which is home to a large Assyrian population. Both gangs stem from the notorious gang the Assyrian Kings.

A man was shot in the back in his Fairfield home in July, and was taken to hospital. Two weeks later, a 24-year-old was also shot in the back at Prairewood. Both men survived.

Police have launched Strike Force Jacoby to investigate the shootings, after they were forced to establish Operation Condor to confront the escalating gang violence.

Assyrians came to Australia mostly has refugees from war-torn Iraq.