Black Magic Murder Part 1

Dr Firdos Balsara visits K.D Pathak's office with a request to save his close friend Ankit Luthra who got trapped in a murder. Dr Balsara also reveals that Ankit is the murderer but during the murder, he was suffering from black magic and that black magic made him kill his Business Partner Kapadia. The court does not believe in black magic. How will K.D Pathak prove Ankit innocent?