Sydney victim's husband makes an emotional appeal, says bring killer to justice ;

A file picture of IT professional Prabha Arun Kumar. The husband and brother of 41-year-old Indian national who was stabbed to death in Sydney have pleaded for justice. Making an emotional appeal to Australian authorities, Prabha Arun Kumar's husband Arun said, "My wife was the most caring and beautiful soul".
Arun had flown in from India following the brutal murder of his wife. A PTI report quoted him telling "I know that we can't bring her back but I want, whoever killed my wife, to be brought to justice."
"I'm her husband and father of a young girl, who has lost a beloved mother," he added, and also appealed to people to help find the culprit, if they have any information on him.
Meanwhile, detectives are still searching for the killer and trying to establish a motive in the attack. They said that it does not appear that Prabha was sexually assaulted or robbed or racially attacked.
Prabha's brother, Shankar Shetty also made a personal appeal to his sister's killer to surrender. "You have taken my sister's life, please step forward and get help and get your life back," he said.
"Nobody deserved to have anyone from their family taken away from them in these horrific circumstances," he said, adding, "the pain I have felt since (her death) has been unimaginable."
Police have interviewed several witnesses since the attack on her in a park in Sydney on Saturday.
Homicide Squad Commander Detective Superintendent Michael Willing said, "I can say at this point in time, we are no closer to identifying a motive for this senseless attack," he said.
Willing said from CCTV footage police had reviewed, they don't think they can identify anyone who was following Prabha.
The police have also released the CCTV footage of Prabha walking from the Parramatta train station just before she was fatally stabbed and appealed to people for information to crack the baffling case.