The man accused of killing Mackenzie Lueck in Salt Lake City in June had previously been the focus of a rape investigation before his accuser declined to press charges.

The Los Angeles Times reports that Ayoola Ajayi, who was arrested last week for the presumed murder of the 23-year-old University of Utah student, was a suspect in a rape investigation in North Park, Utah, in 2014. The investigation ceased when the alleged victim decided not to pursue charges.

The report did not provide further specifics about the alleged crime, and it is not clear if Ajayi was the only suspect.

As USA Today reports, Ajayi did not have a criminal record at the time of his arrest last week.

Lueck was last seen on June 17 when she took a Lyft from the Salt Lake City International Airport to Hatch Park, where she met a man in a vehicle that police believe was Ajayi. Last week, investigators dug in the suspect’s yard in Salt Lake City and found burned items they believe belonged to Lueck, along with human female tissue that was reportedly a match for Lueck’s DNA profile.

Authorities have not yet disclosed how they believe the young woman was killed. Ajayi remains in police custody and is expected to be charged with multiple counts, including aggravated murder.