BLOOMINGTON, Ind. (CBSNewYork) – The last official public search for a missing college student from Westchester wrapped up Wednesday, and after four weeks of intense searching in Indiana, there’s still no sign of Lauren Spierer.

It’s been almost a month since the Indiana University student disappeared. Large-scale searches have been called off and Spierer’s parents have scheduled a news conference for Friday in Bloomington.

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WCBS 880’s Catherine Cioffi reports: Almost Four Weeks And Still No Sign Of Lauren Spierer

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Spierer was last seen on June 3 walking back to her apartment after a night out with friends.

The two major leads that police had in the case have turned out to be nothing.

A white truck that police thought might have been connected to the case turned out to be a contractor looking for an employee and a bag of clothes found in Spierer’s apartment complex also was found to have no connection to the case.

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Police say at this point, they haven’t found a trace of the missing 20-year-old but say they will continue to focus on investigative leads.