With the ongoing CBI probe into the death of Kolkata graphics designer Rizwanur Rehman, the phone calls and SMS' that he made in the last hour before his death seem to weaken the suicide theory. The last SMS that Rizwanur Rehman sent was to his father-in-law Ashok Todi at 9:21 am on October 21, the day he died. The SMS wished Todi well and mentioned a letter for him.