Bystanders were seen on video confronting a gunman before his ISIS-inspired deadly mass shooting at Bondi Beach in Sydney, Australia, could begin. 

Despite their efforts to disarm him, the gunman eventually overpowered the two bystanders and killed them, according to authorities.

The bystanders were later identified as Boris and Sofia Gurman, according to the Sydney Morning Herald. The outlet reported that the Gurmans were walking by as they saw the assailant exiting a vehicle. Though Boris had the upper hand for a moment after picking up the shooter’s rifle, the attacker allegedly picked up another rifle during the confrontation and fatally shot the couple, making them the first victims of the massacre.

“We are heartbroken by the sudden and senseless loss of our beloved Boris and Sofia Gurman,” the family said in a statement on Tuesday afternoon, according to the Sydney Morning Herald. “While nothing can lessen the pain of losing Boris and Sofia, we feel an overwhelming sense of pride in their bravery and selflessness.”

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In the video, obtained and verified by Reuters, an eyewitness replaying the dashcam footage recalls how the incident unfolded.

“You see the shooter here — he fired shots from here, shooting from here. And then look, this guy went and tackled him (shooter), knocking him to the ground. At that point, he had already grabbed the gun,” the witness, who was speaking in Mandarin, said in the video, according to a Reuters translation.

Authorities have identified the shooters as a father, 50, and a son, 24. The father was killed at the scene, while the son was shot by police and taken to the hospital in critical condition. Australian authorities also said that the shooters had improvised explosives and homemade ISIS flags in their vehicle.

On Sunday, the pair opened fire on families celebrating Hanukkah at Bondi Beach, killing 15 people and leaving more than two dozen injured. The Australian government is investigating the incident as a terror attack targeting the Jewish community.

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During the deadly rampage, another bystander, Ahmed al Ahmed, an Australian immigrant, wrestled a gun away from one of the shooters. His attorney said that Ahmed does not regret intervening, despite being “riddled with bullets” and in intense pain.

“He doesn’t regret what he did. He said he’d do it again. But the pain has started to take a toll on him,” Ahmed’s attorney, Sam Issa, told The Sydney Morning Herald. “He’s not well at all. He’s riddled with bullets. Our hero is struggling at the moment.”

The outlet reported that Ahmed has undergone his first round of surgery and that Issa fears the hero bystander may lose his left arm.

“He’s a lot worse than expected. When you think of a bullet in the arm, you don’t think of serious injuries, but he has lost a lot of blood,” Issa said.

President Donald Trump praised Ahmed for his actions, calling him “a very, very brave person” and saying that he has “great respect” for him.

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The Bondi Beach attack is the worst mass shooting Australia has seen since the country implemented sweeping reforms after a shooter killed 35 people in Port Arthur, Tasmania, in 1996. Following the Bondi Beach attack, Australian leaders have vowed to strengthen the country’s already restrictive gun laws.

Prime Minister Anthony Albanese announced several proposed actions, including limiting the number of guns one can possess.

“The government is prepared to take whatever action is necessary. Included in that is the need for tougher gun laws,” he said after meeting with his National Cabinet.

Fox News Digital’s Louis Casiano, Bradford Betz and Alex Nitzberg contributed to this report.