19 year old Brianna Denison disappeared from the house of friends she was spending the night with in Reno, Nevada. After giving Brianna some blankets and pillows, the roommates went to bed for the night and awoke to find the young girl missing and a blood stain the size of a silver dollar on the couch she slept on.

Police say the apartment she was in was rented to collage students who rarely locked the door, so no sign of forced entry was found and they officially have no suspects. Police are searching for a person of interest however. From ABC News:

The search intensified today when authorities announced that they wanted to talk to an unnamed man in his 40s who may have information on Denison’s whereabouts.

A man in a sport utility vehicle picked up one of Denison’s friends around 1 a.m. Sunday at the Sands Regency Hotel Casino after she failed to find a taxi. The driver dropped her at the house where Denison was staying. While the ride was without incident and police are not calling the man a “suspect,” they say that he is a “person of interest” who may know something about the disappearance. “It’s a leaf that’s unturned,” Macdonald said.

Reno police released a surveillance image showing the man’s beige or light-brown Chevrolet Suburban leaving the casino’s parking lot Sunday morning. The unidentified driver is described as a white male, possibly of Latin descent, with a medium build. He was well-dressed, according to police.

Anyone who has information about Denison or the driver of the SUV, should call the Reno Police Department at 334-2121. If you wish to remain anonymous you can call the Secret Witness hot line at 322-4900.