Ahmed al Ahmed, the Syrian-Australian father who wrestled a shotgun from one of the gunmen attacking a Jewish gathering, is facing a long road to recovery.

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.

The attack was Australia's worst mass shooting in nearly 30 years, and is being investigated as an act of terrorism targeting the Jewish community.

People of all ages had been looking forward to celebrating — especially this year, as a ceasefire in Gaza has held since October and all but one of the hostages taken by Hamas-led militants have been returned.