Two days after a Purdue University student celebrated her 21st birthday, police found her dead in the off-campus apartment she shared with college roommates.

Laura Marie Williams, a student in the school of Consumer and Family Science, was found by police approximately 11:30 a.m. Monday, Jan. 22, after her roommates called police, said West Lafayette Police Department Lt. Jeff Dumkowski. Williams had entered her room between 3 and 4 p.m. the day before complaining of a birthday-celebration hangover.

By the time her roommates called police Monday, Williams had missed classes and not responded to knocks on her locked bedroom door.

Williams had gone out with friends Saturday night to celebrate her 21st birthday and became very drunk, Dumkowski said. She awoke late the next afternoon and complained of a hangover to her roommates before taking a shower.

Williams roommates last saw her alive when she re-entered her room late Sunday afternoon.

The Tippecanoe County coroner’s office completed an autopsy Tuesday, Jan.23, but said the results would not be available for two weeks, pending a toxicology report, a spokeswoman said.