The CBI began its investigation in the Sushant Singh death case on Friday, hours after a special 10-member team arrived in Mumbai. A staff member of Bollywood actor Sushant Singh Rajput was questioned for the second consecutive day by the SIT. The locksmith, Mohd Rafi Shaikh, who broke the lock of bedroom in which Sushant Singh Rajput died, revealed details of what happened on June 14. Watch Exclusive report.