Australian leaders have promised to immediately overhaul already-tough gun control laws after a mass shooting targeted a Hanukkah celebration on Sydney’s Bondi Beach.

Widely circulated footage shows a man tackling one of the alleged gunmen who attacked a Bondi Beach Hanukkah celebration. Here's what to know about him.

A Holocaust survivor, a 10-year-old and a Chabad rabbi were among the 15 people killed when two gunmen opened fire on a Hanukkah event at Australia's Bondi Beach on Sunday. Hundreds of people had gathered to mark the first day of the Jewish festival, before the attackers struck at the event in Sydney.

When shots started ringing out at Bondi Beach in Sydney, Australia, on Sunday, Logan Wein and Jordy Velasco turned into oncoming traffic and warned people headed toward the water to turn around altogether.

Three decades ago, almost 650,000 firearms − about one-third of all privately owned guns in Australia – were surrendered, loaded intro trucks and destroyed. In exchange for these firearms, part of a mandatory gun buyback program, the government paid out $200 million. Gun-related murder and suicide rates plummeted.

Chabad-Lubavitch Headquarter's Rabbi Yehuda Krinsky says the Bondi Beach shooting reflects Australia's tolerance of escalating antisemitic violence.