For many people it’s real but temporary, while a smaller proportion develop longer lasting symptoms.

“These antisemitic terrorist attacks will not be successful with their objective, which is to divide us as a nation.”

The 44-year-old, unarmed and acting alone, confronted an armed gunman in the attack that claimed 16 lives, including a child, and left 29 others injured.

ASIO and the Joint Counter Terrorism Team will piece together how a previously investigated extremist, allegedly inspired by IS, was able to arm himself and carry out a devastating attack on a Jewish festival

Tragically, they were shot and killed in the process. They were heroes too. They stepped forward in the face of extreme danger.”

The 50-year-old father, Sajid Akram, and 24-year-old son, Naveed Akram, had six guns.

Senator Hanson said the focus on firearms reform amounted to “yet another failure of leadership”, arguing the real issue was radical Islam and intelligence failures.

One gunman was shot dead at the scene, while the second remains in custody in critical condition.

The 43-year-old father of two wrestled a rifle from one of the gunmen during Sunday’s mass shooting, an act authorities say may have saved countless lives.

Police said the shooting occurred just after 6.40pm near a Jewish community gathering at Bondi Beach, where hundreds of people had assembled for a Chanukah by the Sea event.