Nude photos of 18-year-old Emily Sander appeared on a Zoey Zane Web site before she vanished, and investigators are looking into whether her modeling had anything to do with her disappearance last Friday.
"She enjoyed it. She is a young teenage girl and she wanted to be in the movies and enjoyed movies. She needed the extra money," Nikki Watson, a close friend of Sander's at Butler Community College, told The Associated Press on Wednesday. "Nobody in El Dorado knew besides her close friends."
Sander's brother, Jacob Sander, confirmed that the nude woman pictured on the site is his sister.
El Dorado Police Chief Tom Boren said FBI and state experts on Internet crime have been called in.
"Investigators are aware that Miss Sander was apparently involved in a Web site situation," he said. "Allegations that this may factor into her disappearance are being thoroughly investigated."
Sander was last seen leaving a bar in El Dorado, about 30 miles from Wichita, with a man identified as Israel Mireles, 24, authorities said. Sander and Mireles had met that night at the bar, according to Watson.
Sander is 5'3", 105 pounds with brown hair and blue eyes, reports CBS affiliate KWCH-TV.
After Mireles did not show up Saturday at his job at an Italian restaurant, his employer went to the motel room where he was staying.
"His motel room was found to appear in great disarray, and a large quantity of blood was found in the room," Boren said. "Bed clothing was found to be missing. The police were called."
A nationwide manhunt was under way for Mireles and his 16-year-old girlfriend. A rental car he had been driving turned up Tuesday in Texas, where he had family. Those relatives have been interviewed, El Dorado Detective Justin Phillips said, but he declined to say whether they had seen Mireles or knew where he was.
On Tuesday, authorities released a photo of a white bedspread with a floral design and asked for the public's help in locating it. Divers searched a reservoir near El Dorado on Wednesday.
"Our hopes kind of diminish each day we don't hear from her," the police chief said.
Sander recently signed a contract for the pornographic work on the Web site, and told her parents about it on Thanksgiving, Watson said. Her boyfriend broke up with her because he did not approve, Watson said.
"What you are telling me now is things we have never been told or heard," said Sander's grandmother, Shirley Sander. "I don't know what to say. We have never heard anything like this, and truthfully, I don't believe it."
Watson said she does not believe Sander's pornography work had anything to do with the disappearance.
"Nobody even knew about this until one of our close friends came out and told everybody because Emily did not want anybody to know," Watson said.
The brown-haired, blue-eyed Sander was last seen wearing low-rider jeans and a "Don't Mess With Texas" T-shirt. She has tattoos and body piercings.
Emily Sander's grandfather, Clem Sanders, said Emily is a sweet girl and was welcomed everywhere she went, according to KWCH.
"We want to find her and we want your help," he said. "We need closure on this, one way or the other."
In other news, police have also stepped up their investigation into the disappearance of Jackson State University student Latasha Norman, 20.
Norman's father, Danny Bolden, says he has no choice but to continue searching for his daughter. "Every day we want to try to do something we got to keep this story alive," Bolden said, according to CBS News affiliate WJTV.
Norman hasn't been seen since she vanished from campus on November 13th. Investigators say she was last seen leaving a marketing class.