(CBS/WISH) BLOOMINGTON, Ind. - "We believe the chance that there was foul play is very great," said Bloomington Police Lt. Bill Parker, in a press conference Wednesday about missing Indiana University student Lauren Spierer.
Lt. Parker said if that were not the case, the 20-year-old from Greenburgh, N.Y. "would have made contact by now."
He said he had no big news about the sophomore who disappeared early last Friday morning, adding, "I wish we did."
Parker said searchers would be expanding their search Wednesday outside of the city. He said the effort would be joined today by a representative from the National Center for Missing and Exploited Children, which has offered their resources.Spierer was last seen about 4:30 a.m. on Friday, June 3, as she left a friend's apartment after a night out with friends, and started walking home to her downtown Bloomington apartment, reports CBS affiliate WISH.
Police have interviewed her friends and say they fully cooperated with the investigation.
Lt. Parker also said police have found "items of value" in their investigation, but would not say what they are. He also indicated acquaintances of Lauren were being given polygraph tests.
There is still no one police "could characterize as a suspect," according to Parker.
Spierer's father, Robert, once again professed gratitude to the town of Bloomington and the volunteers for their support.
"It's really hot out there," Spierer said. "These people are incredible for coming out to volunteer."
He added, "We need all the help we can get."
Robert Spierer once again asked anyone with information to contact the Bloomington Police Department.Complete Coverage of Lauren Spierer on Crimesider