The Special Investigation Team of Tamil Nadu police investigating the 2017 Kodanad Heist and murder case has accelerated its probe and is zeroing in on more culprits.Senior officers of the Tamil Nadu police said that the team has found more evidence in connection with the murder of security guard Om Bahadhur on the fateful night of April 23-24. Another security guard at the estate, Krishna Thapa, was grievously injured in the attack.The 900-acre Kodanad estate was jointly owned by former Tamil Nadu Chief Minister late J.Jayalalithaa and her aide V.K.Sasikala.The robbery and murder at the Kodanad estate took place after Sasikala was remanded to Bangaluru central prison on February 15, 2017.JayaLalitha had passed away on December 5, 2016. Public prosecutor Hassan Mohammed Jinnah on Friday informed the Madras High Court that the SIT investigating the Kodanad Heist and murder case has come up with fresh clues and evidence in the case.