DEKALB, Ill. (AP) — Thirteen of the 22 people facing hazing-related charges following a Northern Illinois University student’s death have turned themselves in to police.

A DeKalb Police Department spokesman said Tuesday seven people surrendered to police in DeKalb. All seven posted bond and were released.

The other suspects turned themselves in to other police departments. The spokesman did not know if they also had posted bond.

Nineteen-year-old David Bogenberger died after drinking heavily during a Nov. 1 party at the Pi Kappa Alpha fraternity house.

Police said Bogenberger and other pledges drank large quantities of liquor during a two-hour period.

The coroner said Bogenberger’s blood-alcohol content was about five times the legal limit for driving.

The university said 31 students could face penalties from reprimand to expulsion.