Brisbane (Australia), Mar. 27: Indian Australians Vijay and Shirley Singh have decided to sue the man accused of brutally killing their three children almost six years ago - for trespass.

According to the Courier Mail, the Singhs have filed a 140,000 dollar damages claim against Massimo "Max" Sica in the Queensland District Court for "negligent trespass" and, or alternately "private nuisance", at their Bridgeman Downs home around the time their children were killed.

The claim details cleaning, repair and security costs incurred after the crime and police investigation.

Sica is in jail awaiting trial after he was charged on December 30 with the murders of his former girlfriend Neelma, 24, her younger brother Kunal, 18, and sister Sidhi, 12, on April 21, 2003. He was refused Supreme Court bail in January.

Sica, the self-proclaimed "prime suspect" in one of the most complex investigations in Queensland police history, discovered the bodies and notified police.

The Crown has alleged Sica killed the Singh children in their separate bedrooms and dragged them to a steaming spa bath upstairs.

Neelma died from manual strangulation, Kunal drowned and Sidhi died from head injuries. (ANI)