The CBI is understood to have come to the conclusion that Rizwanur Rehman, a computer graphics teacher of Kolkata, had committed suicide and is likely to book two members of the Todi family and two police officers alleged abetment.

The investigating agency, which was directed by the Calcutta High Court to probe the death, is expected to apprise the court next week of its findings and file a report in this regard, sources said.

In the wake of a raging controversy over the alleged role of policemen in collusion with the businessman’s family, the issue was taken up in the Calcutta High Court and CBI was directed to probe.  CBI sources said the agency had retrieved the last suicide note from the computer recovered from the kin of Rehman who died under mysterious circumstances after his wife was taken back to her maternal home. CBI gathered this data from the computer recovered from the house of Rehman’s maternal aunt, who after his death  had deleted the letter, the CBI sources said.