information on the Brianna Dennison case

RENO, Nev. — A 19-year-old college student mysteriously vanished from a Reno, Nev., home early Sunday morning, and cops fear she may have been kidnapped.Brianna Denison, a student at Santa Barbara City College who is from Reno, was staying with friends near the University of Nevada, Reno. She was last seen at about 4 a.m. Sunday, when she returned home from a party and went to sleep on the couch wearing sweat pants and a T-shirt."We're treating this as an abduction case right now," Lt. Robert McDonald of the Reno Police Department told FOX News. "A small amount of blood on her pillow is of interest to us."Cops are looking for a tan-colored, later-model GMC or Chevy Suburban and a white male, about 45 years old, who might be of Latin descent."He's certainly a person of interest. We're treating him as a person of interest, not a suspect," McDonald said.The man driving the vehicle had picked up a friend of Denison's earlier that evening from the party both were attending when the friend was trying to hail a cab and dropped her off without incident at Mackay Court, the residence where she lived and Denison was staying, McDonald told FOXNews.com."We don't know who he is," McDonald said. "We know he was outside the residence, but he could have come back. ... Maybe he saw something or knows something that might be of interest."Denison, who is from Reno, is described as white, 5-feet tall, 98 pounds, with long dark brown hair and blue eyes.Investigators say she may have been wearing light blue or pink sweat pants, a T-shirt and no socks or shoes when she disappeared. Her purse and cell phone were found in the house, but a brown stuffed bear that belonged to Denison is also missing, police said.The Reno Police Department said this morning the FBI has joined the investigation into the disappearance of a missing 19-year-old Reno woman.Reno police detectives have been in contact with local Federal Bureau of Investigation agents since Brianna Denison’s disappearance Sunday and said the FBI has opened its own criminal case and assigned an agent to work with the Reno Police Department.Denison was reported missing Sunday by a friend with whom she was spending the night. Denison is described as white, about 5 feet tall with long dark brown hair and blue eyes and weighing about 98 pounds. She was last seen wearing pink sweatpants and a white tank-top shirt. While a brown stuff bear with white and multi-colored balloons on the belly and about 24-inches tall was missing from the area where she was sleeping, her cell phone, purse and clothing, including two pairs of shoes had not been disturbed.Reno police officers today continued to canvas the neighborhood and areas adjacent to the residence at 1395 Mackay Court where Denison was spending the night with friends on the morning of her disappearance.Reno police have worked has with federal, state and local law enforcement agencies since her disappearance and conducted searches of the area, including an extensive search of nearby Rancho San Rafael Park including the use of helicopters and police canine units.Monday, the Reno Police Department established a 24-hour tip line to gather information to assist in the investigation and detectives are following up on information provided on the tip line. Monday evening, members of Brianna Denison’s family made an appeal for her return and for anyone with information about her disappearance to call the tip line at 745-3521. Information can also be called into the Secret Witness Program at 322-4900 or the Reno Police Department detective division at 334-2115.