Melbourne:
The much-awaited autopsy report of the three-year-old boy killed in his home in Melbourne on Thursday, has failed to determine the cause of death.
Victoria Deputy Police Commissioner Sir Ken Jones said: "There is no visible sign of the cause of death," adding: "At the moment we're desperate for witnesses to come forward. We're pretty convinced there's people out there that may have seen something."
He said police have not yet determined if the boy's death was an opportunistic crime or something else. "We just don't know at this time and I don't want to speculate and try to keep people focused on the facts as we know them."
"It's clear that this wasn't death from natural causes, but we don't yet have a 100 per cent conclusion on what the actual cause of death was."
Gurshan was in Australia on holiday with his family and was due to return to India later this week. His body was found around 30 km away from his residence on Thursday.
Victorian state police said the toddler's body was found by a council worker in long grass.
Australian Prime Minister Kevin Rudd has condemned the toddler's death, calling it a "brutal thing to happen". Police were treating the incident as a "worst case" and have deployed all available resources to investigate the suspected homicide.