After the identification of the body found in Lake Piru, California, from Ventura Sheriff department, the results of the autopsy have come to light. The authorities established that it was an accident because there was no indication of violence or disease. Read the article for more information about the Glee actress.
According to the Medical Examiner, the body had no signs of struggle and the cause was drowning. The document also establishes that "the manner of death is accident".
It also informs that the actress didn't have any traces of alcohol or drugs in her body at the moment of the accident.
At the end, all the theories were confirmed. She probably hit a water swirl. Those are common in the area of Piru Lake, specially when the dams are open. Relatives from a girl who drowned the same way told the media it's like a force the takes you down the lake and there is "nothing you can do to fight it".