The question is a bit ambiguous because there have been multiple widely reported shootings in Australia, each with different perpetrators.
Recent Bondi Beach attack
The most recent major case in the news is the mass shooting at a Hanukkah event at Bondi Beach in Sydney in December 2025. In that incident, authorities have publicly identified one of the alleged gunmen as Naveed Akram, a 24‑year‑old man linked to a father‑and‑son pair suspected in the attack.
Earlier well‑known case
If the question instead refers to the deadliest modern mass shooting in Australia, that is the 1996 Port Arthur massacre in Tasmania. The perpetrator in that case was Martin Bryant, who killed 35 people and injured 23 others and is serving multiple life sentences.
If you can clarify which incident (for example, “Bondi”, “Port Arthur”, or another city or year) the question is about, a more precise answer can be given.
