Joe Vialls was a conspiracy theorist and internet journalist based in Perth

Perth, Western Australia

Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of almost 1,700,000....

, Western Australia

Western Australia

Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

. His claims that major incidents such as the Port Arthur massacre, terror attacks in Bali

Bali

Bali is an Indonesian island located in the westernmost end of the Lesser Sunda Islands, lying between Java to the west and Lombok to the east...

 and Jakarta

Jakarta

Jakarta is the capital and largest city of Indonesia. Officially known as the Special Capital Territory of Jakarta, it is located on the northwest coast of Java, has an area of , and a population of 9,580,000. Jakarta is the country's economic, cultural and political centre...

 and the 2004 Asian Tsunami were the work of Israeli and American secret agents gained a measure of notoriety in Australia, America and Indonesia.
Joe Vialls self-published a number of books including Deadly Deception at Port Arthur, The Murder of Policewoman Yvonne Fletcher and Lockerbie and the Bombing of Pan Am 103, and was the author of hundreds of internet articles.

Many of Vialls' investigations blamed significant world events - such as the 2004 Asian Tsunami - on joint CIA/Mossad

Mossad

The Mossad , short for HaMossad leModi'in uleTafkidim Meyuchadim , is the national intelligence agency of Israel....

 operations, and Vialls maintained in disclaimers on his site that his reports were written in the interest of public safety.