The Coconino County Medical Examiner's Office released a report on Tuesday citing that Northern Arizona University student Kain Turner died by drowning after falling into the cold waters of the Rio de Flag.
Turner was last seen before his death near the Rio during the early morning hours of Sunday Dec. 2, 2018.
The included toxicology report showed the 21-year-old student had "acute alcohol intoxication" with a blood alcohol content level of .202 percent at the time of his death. For context, the limit for driving after drinking alcohol is .08 percent.
Michael Madsen, assistant medical examiner, wrote in the report that the investigations did not indicate any other life-threatening injuries or drugs contributed to his death.
"He was witnessed to fall in a creek near the area where he was found," Madsen said. "[Turner] reportedly refused assistance and walked away."
The official cause of death was not known until the report, but temperatures on the early morning of his death dropped to 11 degrees after having snowed the day before, according to the National Weather Service.
A friend who was out with Turner in the hours before he went missing told police that Turner's intoxication levels were "pretty high." The same friend reported that Turner was kicked out of the bar for being too intoxicated.
Details of the police report showed that a woman who was downtown in the early morning hours reported seeing Turner, before his disappearance, drunkenly stumbling through the Rio. The woman told police she asked Turner if he needed help, which he denied.
After reporting Turner missing to the Northern Arizona University Police Department, Turner's friends organized a search party on Dec. 3, according to a Flagstaff police report. The report detailed that the search party eventually found Turner in the Rio and reported it to police.
Turner was originally from Cottonwood and was studying at NAU to pursue a bachelor of science. He was expected to graduate in fall 2020.