Melbourne: Husband and brother of 41-year-old Indian national Prabha Arun Kumar, who was stabbed to death in Sydney, today made an emotional appeal to Australian authorities to find her killer and bring him to justice.

Speaking to reporters in Sydney, the victim's husband Arun Kumar said, "My wife was the most caring and beautiful soul". Arun had flown in from India following the brutal murder of his wife, who was an IT professional.