Washington: US police have concluded that the death of Rajeev Motwani, India-born Stanford professor and the mentor and adviser of founders of top Internet firms like Google and PayPal, was a case of accidental drowning.
Police concluded their investigations into the case after the autopsy report released by the San Mateo county coroner's office revealed that Motwani's blood alcohol level was 0.26 when he died as against the US permissible driving level of 0.08.
San Mateo County Coroner Robert Foucrault termed it as an "unfortunate accident".
"It is difficult to know what effect a given alcohol level will have on a person because tolerance varies from individual to individual," Foucrault said.
"It was a contributing factor but the cause of death was drowning," he said, adding there would be no further investigation of the death.
The news of sudden death of 47-year-old Motwani, whose body was found in the swimming pool of his Palo Alto home on June 5 had sent shock waves across the Silicon Valley.
Motwani's friends said, he was learning to swim.
Motwani was the brain behind several of the key advancements in the world of the internet, including Google and PayPal.