The couple -- identified as 29-year old Vishnu Viswanath and 30-year old Meenakshi Moorthy -- fell Oct. 24 hundreds of feet from Taft Point, a dangerous but popular location for photos.
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An autopsy released Friday shows both had apparently been drinking alcohol before getting too close to the edge of the peak.
The couple had been hiking in an area with steep terrain when they fell.
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Their bodies were recovered the next afternoon.