Updated

An autopsy has determined that a University of Arizona student from California was drunk when he fell to his death April 4 while climbing a rooftop tower.

The Arizona Daily Star (http://ow.ly/wQ0s6 ) reports that 19-year-old Michael Evan Anderson of Mission Viejo had a blood alcohol level of more than twice the .08 legal limit for drivers. His death was ruled accidental.

There was evidence that Anderson also had smoked marijuana, it's unclear when. Dr. Gregory Hess of the Pima County Medical Examiner's Office says the student clearly was under the influence, primarily of alcohol.

Anderson was with another student when they went to the roof of a three-story residence hall.

Anderson had climbed about halfway up a 20-foot tall ventilation tower when he fell onto the rooftop.