New Delhi, October 12 (ANI): The Delhi High Court today acquitted former senior police officer Ravi Kant Sharma and two others in the 1999 murder case of journalist Shivani Bhatnagar. RK Sharma had appealed against a Delhi court verdict awarding him the life sentence. The High Court judge said there was not enough concrete evidence against them and that the benefit of doubt in the case should go to them. The court has only upheld the conviction of one of those accused in the murder, a hitman Pradeep. Shivani Bhatnagar, a senior journalist working with the newspaper The Indian Express, was murdered in her East Delhi apartment on January 23, 1999.