Robert and Charlene Spierer, Lauren's parents, listen to search supporters as they make plans before the search for their daughter on June 5 in front of Smallwood Plaza. Lauren was walking back to her apartment in Smallwood when she was last reported seen two blocks north of it, at 11th Street and College Avenue.

Robert Spierer helps coordinate search plans during the search for her daughter, Lauren, on June 5 near the Paynetown State Recreation Area. Friends and others who said they wanted to help gathered at Smallwood at 10 a.m. that day to begin the search, which would spread into the areas around Lake Monroe, Griffy Lake and the Hoosier National Forest.

Charlene and Robert Spierer talk with family friends and the Bloomington Police Department after searching for their daughter Lauren on June 5 in Camp Maumee in Hoosier National Forest.

Bloomington Police Department Lt. Scott Oldham gives a search assignment to a group of volunteers at the start of the evening search for Lauren Spierer on June 6 in front of Smallwood Plaza. The Helene G. Simon Hillel Center organized three public searches for June 6, and BPD became more involved by the end of the day.

Bloomington resident Tiffany Belcher and other searchers find clothes in a black trash bag during searches for Lauren Spierer the morning of June 6 at Seventh and Walnut streets. The bag contained a gray T-shirt and a pair of blue jeans, clothes that did not match the last description of Lauren.

Charlene Spierer cries as Robert reassures her during the eighth press briefing on the search for Lauren Spierer on June 14 at Bloomington Police Department headquarters. Briefings started June 7, with national media arriving by the next day.

Capt. Joe Qualters points out a white truck as Charlene Spierer looks during the ninth press briefing on the search for Lauren Spierer on June 15 at Bloomington Police Department headquarters. Capt. Qualters said they saw the truck appear twice on surveillance tapes rounding a block near where Lauren was last reported seen. The truck and its driver were later cleared of any involvement in the disappearance.

Robert Spierer speaks as he holds up a video grab of his daughter Lauren taken from Smallwood Plaza during the ninth press briefing on the search for Lauren Spierer on June 15 at Bloomington Police Department headquarters.

A Bloomington Police Department officer hands a computer tower to another officer during service of a search warrant June 7 at Smallwood Plaza.

A Bloomington Police Department officer brings a trolley carrying three computer towers out of the lobby during service of a search warrant June 7 at Smallwood Plaza. The towers and four CD cases were taken from one room in the Smallwood lobby, placed in another room and then removed from the apartment complex.

Search organizer John Summerlot explains to volunteers where they will be searching before the 2 p.m. public search for Lauren Spierer on June 8 in front of Smallwood Plaza.Summerlot said search organizations complimented the volunteer search system and that they were doing what the professional teams would have done. "We feel pretty good for being a group of volunteers who don't do this by trade," he said.

Lt. Col. Ralph Vargas of IU ROTC shows his cadets (second lieutenant Matt Teatreau, cadet Wayne Hartman and cadet Aaron Ferguson) where they will be searching for Lauren Spierer on June 8 in front of Smallwood Plaza. The group went to the dam at Griffy Reservoir to search the surrounding woods.

Second lieutenant Matt Teatreau of IU ROTC walks toward a ravine as he searches for Lauren Spierer on June 8 near the dam on Griffy Reservoir.

Lt. Col. Mike Ogden, cadet Aaron Ferguson, cadet Wayne Hartman and second lieutenant Matt Teatreau of IU ROTC catch a water break during their search for Lauren Spierer on June 8 near the dam on Griffy Reservoir.

Lt. Col. Mike Ogden of IU ROTC puts water on his head to cool himself during his team's search for Lauren Spierer on June 8 near the dam on Griffy Reservoir. Temperatures reached about 96 degrees with about 45% humidity during the fifth day of volunteer searches.

Second lieutenant Matt Teatreau wipes his mouth as he stands in a marshy field during his team's search for Lauren Spierer on June 8 near the dam on Griffy Reservoir.

A police officer points a car toward the curb during a traffic stop meant to spread the word and ask questions about Lauren Spierer at 3:30 a.m. June 10 on North College Avenue. Officers from the Bloomington and IU police departments set up the stop to mirror one week later the conditions in which Lauren disappeared.

Search volunteers John Summerlot and Cliff Cox watch a report about missing IU student Lauren Spierer on America's Most Wanted on June 11 inside search headquarters.

Members of the Bloomington Police Department and Indiana State Police patrol a suspected area during a search June 19 on State Road 37 south of Martinsville. BPD Capt. Joe Qualters said police searched the area after a caller reported a strange smell on a tip line.

Onlookers watch from the Hillview Hotel as the Bloomington Police Department and Indiana State Police search the wooded area. Capt. Qualters said nothing related to the search for Lauren Spierer was found.

Indiana State Police trooper Matt Holley looks back as he return to his car after an ISP search for Lauren Spierer along State Road 37 on June 23 near the Monroe-Lawrence county line. Holley said today's search started around the intersection with State Road 45 and ended at the county line.

IU junior Tom Schmitt and Bloomington resident Jeff Ritter look at a map before searching for Lauren Spierer on June 29 along S.R. 446. June 29 was the last day of general volunteer searches for the IU student.

IU junior Tom Schmitt marks places where he and Bloomington resident Jeff Ritter have found bones during a search for missing IU student Lauren Spierer on June 29 near S.R. 446 outside Bloomington.

A femur lays on the ground during a search for missing IU student Lauren Spierer on June 29 near S.R. 446. Other bones, including ribs, vertebrae and part of a hip, were found near the highway. A Bloomington Police Department anthropologist confirmed that they were not human bones.

Robert Spierer talks with the media after a vigil for his daughter Lauren on June 30 at Evangelical Community Church.

Charlene Spierer gives a flier with information about her daughter Lauren to a driver during Fourth of July festivities at the Monroe County Fairgrounds. Charlene, her husband Robert and other volunteers started handing out fliers at fairground entrances at 4 p.m.

Blair Wallach, an IU student and one of Lauren Spierer's friends, hugs Charlene Spierer while surrounded by other friends during an event marking six months since Lauren's disappearance on Dec. 3, 2011, in front of Smallwood Plaza. Posters of Lauren's face and information remain on buildings around Bloomington, but Lauren's parents have moved home to New York and have raised the reward for information leading to her finding to $250,000.