"The forensic department is yet to send its final report, but going by the initial probe it is a case of suicide by burning and not homicide," Special Additional Commissioner of Police(Crime) Pallab Kanti Ghosh told reporters,
He said that Arabindo had tuberculosis in his left lung and sarcoidosis of liver.
On forensic tests on the skeleton, allegedly that of Arabindo's daughter Debjani, Ghosh said, "Tests are being conducted. The DNA sample will be sent to ascertain the identity of the skeleton."
Asked about contents of several diaries and paper notes recovered from the apartment which suggested brother-sister incest, he merely said that the local police station was going through the papers, but no hint of that had been found.
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The police has recovered eight laptops, desktop computers, paper notes and letters written by family members and diaries from the apartment.
Ghosh said that during their primary investigation, doctors suggested that no chemicals were used to preserve the skeletons inside the apartment.
It was also baffling why none in the locality smelt the stench of the dead bodies although the doctors have ruled out use of chemicals to preserve the skeleton, he said.