Kolkata Police sleuths questioned 14 of the 17 people following Aabesh's death.
Primary evidences gathered from the lawn and car parking of the Sunny Park apartment where teenager Aabesh Dasgupta lost his life after being allegedly hit by broken alcohol bottles hinted at "an accidental" death, Kolkata Police officials handling the case said today.
"Evidences collected from the place of occurrence are indicating that the death of Aabesh can be accidental. Though it is yet to be established but the circumstantial evidences are quite strong," a senior Kolkata Police officer said.
A special team was formed for looking into the matter as mother of Aabesh met city police Commissioner Rajeev Kumar, who promised her of a "neutral probe" into the matter.
The deceased's mother, who also met Joint CP (Crime) Visal Garg at the Kolkata Police headquarter, claimed that her son was "murdered" and "all those present at the birthday party should be questioned" to have a clear idea of what actually happened on that evening.
In fact, Kolkata Police sleuths questioned 14 of the 17 people who were present at the birthday party, a source said, adding that two others who could not be located were yet to be questioned.
The source said persons grilled so far in connection with the incident have lent credence to a theory which established that the 17-year-old youth was carrying one bottle in his left armpit and suddenly fell missing one stair and then the broken pieces of the bottle accidentally got pierced into his body.
Meanwhile, a police team went to the Sunny Park apartment this evening itself for another look at the crime spot.
"We are trying to visualise the whole incident and link those ends which are still missing. And that will also help us in ascertaining the exact cause of Aabesh's death," the officer said.
A three-hour-long post-mortem yesterday was inconclusive and autopsy surgeons paid a visit during night hours to the complex at the upscale Ballygunge area where the mishap happened last Friday.
"They were there for around 25 minutes to collect other evidences from the place which may help them reaching to a conclusion," he said adding that three bottles of alcohol-two broken and one half-empty-were collected from the spot earlier but that could not help much in their investigation.
Kolkata Police have started a murder case against unknown person in connection with the death of Aabesh on the basis of statement of his mother.