"The case is registered as an unnatural death and an inquest is on. We are keeping all possibilities open. However, at the moment there is nothing to indicate that it was a homicide. Both the post-mortem reports have found no antemortem injuries (which a body receives before death) on the activist's body.
Bismarque, also a non-practising Catholic priest, was found dead on November 7 in the backwaters of his village St Estevam after he went missing on November 5. According to his family members, Bismarque had gone for a walk along with two youths, who returned later.
While the first post-mortem report mentioned asphyxiation due to drowning as the cause of his death, the conclusions from the report of the second autopsy, conducted on the request of his family members, are pending as the viscera was sent to Hyderabad Forensic Laboratory, police had said.
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Bismarque, who was also involved in protest against several tourism projects requiring large-scale land acquisition, had received threats to life and complained to police.
Police had already taken the two youths into custody, who had accompanied Bismarque on November 5, and are in the process of questioning those persons whom Bismarque had accused of threatening him.
Bismarque's family had called on the state DGP T N Mohan on Tuesday and demanded that the case be handed over to the crime branch while accusing the police of incompetence.