Australia Charges Third Suspect in 2024 Melbourne Synagogue Arson

3 min readSources: Courthouse News

A 20-year-old man was charged June 19 in the 2024 Melbourne synagogue arson case linked to Iran.

Why it matters: The case tests Australia’s terrorism laws and international diplomatic relations as security threats against religious communities increase. Legal professionals face challenges in prosecuting state-linked politically motivated attacks amid complex evidence and diplomatic tensions.

  • The 2024 arson at Melbourne’s Adass Israel Synagogue injured one worshipper and caused major damage.
  • Third suspect, aged 20, charged June 19, 2026, while in custody for unrelated crimes.
  • Two suspects arrested in July and August 2025: Giovanni Laulu and Younes Ali Younes.
  • Prime Minister Anthony Albanese accused Iran’s Revolutionary Guard of organizing the attack, leading to expulsion of four Iranian diplomats.

On December 6, 2024, three masked individuals committed an arson attack on the Adass Israel Synagogue in Melbourne. The fire caused extensive damage and injured a worshipper, as documented by the Associated Press. Australian authorities have linked the attack to Iran's Revolutionary Guard, which Australian Prime Minister Anthony Albanese publicly accused of orchestrating both this attack and a similar attack on a Sydney kosher eatery earlier.

The investigation is led by the Victorian Joint Counter Terrorism Team, a combined federal and state police and intelligence unit tasked with targeting terrorism threats within Victoria. On June 19, 2026, authorities charged a 20-year-old man—already detained for unrelated offenses—as the third suspect in the synagogue arson case, according to Associated Press.

The first two suspects, Giovanni Laulu and Younes Ali Younes, were arrested in July and August 2025 respectively. Prosecutors face challenges determining whether the suspects had direct knowledge of who ordered the attack, a key point for the case’s progress. Victoria Police Acting Assistant Commissioner Paul O'Halloran emphasized the importance of the investigation for community safety and the protection of religious sites.

In reaction to Iran’s alleged involvement, Australia expelled four Iranian diplomats, including the ambassador, after Iran denied any role in the attacks. These diplomatic expulsions demonstrate the seriousness of state-sponsored terrorism accusations and affect Australia-Iran relations.

The case arises amid a broader government inquiry into rising antisemitism and related violent incidents, including the December killing of 15 people during a Sydney Hanukkah celebration. For legal practitioners, this case highlights the interplay between terrorism law enforcement, international diplomatic tensions, and protections for vulnerable communities.

By the numbers:

  • 2024-12-06 — Date of the Melbourne synagogue arson attack
  • June 19, 2026 — Date the third suspect was charged
  • 15 — Number of people killed in a related December Sydney Hanukkah attack

Yes, but: Legal experts note that determining individual criminal responsibility in state-linked terrorism cases remains difficult due to oftentimes indirect command structures and limited evidence of suspects’ knowledge about higher-level involvement.

What's next: Ongoing legal proceedings against all suspects and continued diplomatic responses are expected; a broader government inquiry into antisemitism is underway.