Credit: Courtesy of the Hayez family / 'Looking for Théo Hayez' campaignEditorial useSourceUNSOLVEDListenCape Byron / Byron Bay area, New South Wales, Australia · 2019
Théo Hayez, an 18-year-old Belgian backpacker, vanished after leaving a bar in Byron Bay, Australia, on 31 May 2019; despite extensive searches, he has never been found.
SOLVEDListenSydney CBD, New South Wales, Australia · 2020
Lilie James, a student and water polo coach, was found dead at St Andrew's Cathedral School in the Sydney CBD on 25 October 2023; the man police named as the prime suspect was found dead by suicide two days later, and a coronial inquest into both deaths opened in March 2025.
UNSOLVEDListenCoogee Aquarium Baths, Coogee, Sydney, New South Wales, Australia · 1935
In 1935 Sydney, a captive tiger shark vomited up a tattooed human arm, sparking a murder investigation into the death of James "Jimmy" Smith that led to a suspicious suicide attempt, a second man's unsolved murder, and an acquittal — leaving the case officially unsolved to this day.
SOLVEDListenCrash site near Jagumba, Snowy Mountains, New South Wales · 1931
On 21 March 1931, the airliner Southern Cloud vanished during a flight from Sydney to Melbourne with eight people aboard, becoming Australia's first major airline disaster. Its wreckage was not found until 1958, in mountainous terrain far off course.
SOLVEDListenSouth-west Sydney, New South Wales, Australia · 2001
Between 2001 and 2009, a feud rooted in rival cannabis operations and marital breakdowns among three south-west Sydney families of Lebanese descent led to multiple shootings and killings, including the Lawford Street murders of Ziad Razzak and Mervat Nemra, and the murders of Ali Abdul Razzak, Ahmed Fahda and Abdul Darwiche.
SOLVEDListenParramatta and surrounding Sydney suburbs, New South Wales, Australia · 1980
Between 1980 and 1985, a series of shootings and bombings in New South Wales targeted judges and others connected to the Family Court of Australia, killing four people. Leonard John Warwick was convicted in 2020 of three of the murders and other offences.
SOLVEDListenFairlight, New South Wales, Australia · 1983
Megan Kalajzich was shot twice in the head while asleep in her Fairlight, NSW home in January 1986. Her husband, Andrew Kalajzich, was convicted in 1988 of orchestrating her murder via a hired hitman and served 25 years in prison.
UNSOLVEDListenHospital Creek, near Brewarrina, New South Wales, Australia · 1859
In 1859, near Hospital Creek northeast of Brewarrina, New South Wales, white settlers killed a large number of Aboriginal men, women and children in a retaliatory mass shooting, reportedly organised by cattle station manager Cornelius "Con" Bride.
UNSOLVEDListen27 Union Street, Cooks Hill, Newcastle, New South Wales, Australia · 2007
Frank Newbery, an 81-year-old World War II veteran and longtime grocer, was beaten to death inside his Newcastle convenience store in March 2007. The case remains unsolved despite a coronial inquest and an ongoing $100,000 reward.
The files run from 1838 to 2024. The 1980s hold the most, with 6 files. The oldest is Hospital Creek Massacre, from 1859.
They are spread across 20 cities and towns; the most are in Sydney (6) and Newcastle (2). By type, the largest groups are murder and homicide cases (18), disappearance cases (5) and kidnapping and abduction cases (5).
13 files of the 26 have coverage attached: 30 videos, podcasts and documentaries from 10 creators. The most covered is Disappearance of Théo Hayez, with 4 items to watch or hear. 60 Minutes Australia, Bella Fiori and Kendall Rae have covered the most of them.
Every file is written from cited sources and pinned where it happened, and every person named carries the legal status the record gives them. If you hold information about an unsolved case, contact the investigating agency named in its file rather than posting it publicly. Families and anyone involved can request a correction from any file.
William Tyrrell in a Spider-Man costume — Credit: William Tyrrell's motherEditorial useSource
'Looking for Théo Hayez' missing-person appeal — Credit: Courtesy of the Hayez family / 'Looking for Théo Hayez' campaignEditorial useSource
Cheryl Grimmer and her father — Credit: Unknown, personal family picture. Likely a relative or family friend.Editorial useSource
Jgb-Monument to Anita Cobby — Credit: Jgb23CC BY-SA 4.0Source
Janine Balding — Credit: English WikipediaEditorial useSource
North Stockton Surf Club 2014 — Credit: Freikorp (talk)Public domainSource
Rufus River massacre memorial — Credit: PeterdownunderCC BY-SA 4.0Source
File:2b Graeme-Thorne150.jpg — Credit: http://www.trutv.com/library/crime/notorious_murders/classics/thorne/2.htmlEditorial useSource
Leeton High School (1) — Credit: BidgeeCC BY-SA 3.0 AUSource
26. By status: 7 unsolved, 2 cold and 17 solved. The count covers published files only and changes as new files clear review.
Hospital Creek Massacre, from 1859. Open the file
Disappearance of Théo Hayez, with 4 videos, podcasts and documentaries linked from its file. Open the file
60 Minutes Australia (6 cases), Bella Fiori (3 cases) and Kendall Rae (2 cases), among 10 creators in all.
Sydney (6) and Newcastle (2).
It rebuilds hourly from the published files; the newest file change here is dated Jul 16, 2026. A status changes only when the record behind it does.
