A Northern Arizona University student found dead at a fraternity house drank a large amount of vodka during an initiation event and some partygoers suspected he may have had alcohol poisoning, according to court documents released Monday.

Witnesses told police that some people looked up the symptoms of alcohol poisoning online after hearing the 18-year-old snoring loudly around 3 a.m. Saturday, and readjusted his sleeping position and checked his pulse and breathing, the documents said. About six hours later, the student was found unresponsive, police said in the documents laying out the reasons three members of the fraternity were arrested.

The Associated Press