Albert Jaime Grassby, AM was an Australian politician who served as Minister for Immigration in the Labor Whitlam government. He completed reforms in immigration and human rights, and is often known as the father of Australian "multiculturalism". He gained notoriety by acting as an agent of influence for the Calabrian criminal network that murdered anti-drugs campaigner Donald Mackay.

Donald Bruce Mackay was an Australian businessman and anti-drug campaigner. He disappeared in 1977, but his body has never been found. In 1986, James Bazley was convicted on his murder.