GREENBURGH — After three full days of searching the streets, construction sites, lakes and woods in and around Bloomington, Ind., authorities still don't know what happened to Lauren Spierer.
The 20-year-old Indiana University fashion student and Edgemont resident disappeared early Friday morning. She was last seen around 4:15 a.m. just a few blocks from her apartment in the middle of a well-lit and busy neighborhood in downtown Bloomington.
Earlier in the night she had visited a friend's apartment and stopped by Kilroy's Sports Bar, which closes at 3 a.m., also a short walk from her apartment.
A manager at Kilroy's who gave only her first name, Megan, said the bar wasn't busy that night. She said Spierer was there for about an hour.
She never made it home.
Spierer's parents, who live in the Edgemont section of Greenburgh, flew out to Bloomington Saturday morning to lead the search.
"We're just busy trying to find her," Robert Spierer, her father, said Monday. "And we're hoping we'll find her soon."
With the help of a growing group of volunteers, the Spierers have distributed about 1,000 posters and fliers throughout Bloomington.
They have scoured the neighborhood around their daughter's apartment, walked through woods while calling her name and checked the area's lakes and ponds, working closely with police all the while.
Robert Spierer said he's spoken with his daughter's friends but declined to discuss what they talked about.
Harold Goldsmith, dean of students at Indiana University, said the college has asked its staff to be extra-vigilant and make a thorough search of the campus' buildings and construction sites.
"Anytime a student is in distress it's a terrible thing. It's a tragedy," Goldsmith said. "My fondest hope is that Lauren is found and found safe and she can resume her life. That's what we're all hoping for."
Spierer takes medication for a heart condition called Long QT syndrome. Though friends and family are primarily concerned about her whereabouts, they are also worried about the effects of her being without medication.
Rebecca Leftkowitz, who graduated with Spierer from Edgemont High School in 2009, said, "It's crucial that she gets that medication."
Leftkowitz described Spierer as "amazing, bubbly, fantastic." The two have been friends since they were in seventh grade.
She said Spierer, her parents and sister are all very close.
"It's very overwhelming, it's very frightening," Leftkowitz said of her friend's disappearance. "I just want my friend to come home."
At Edgemont High School, Superintendent Nancy Taddiken said Spierer is well-known to students and teachers and was quite popular during her time there.
"Certainly our thoughts and prayers are with the family," Taddiken said.
"There's a major concern. That's how I would describe the feeling here."
Spierer was an active student who participated and excelled in all aspects of high school, Taddiken said.
"A wonderful student in all senses of the word. Just an all-around great kid."
Edgemont is a close-knit community with just 940 students in the middle and high school.
"A lot of people are talking, getting together and hoping for the best," Taddiken said, adding that the school has made counselors available to students, staff and faculty members.
At 7 p.m. on Tuesday, the Scarsdale Synagogue Temples Tremont and Emanu-El will hold a prayer vigil for Spierer.
The family has set up a website with information about Spierer at www.iuhillel.org.
A page on the social networking site Facebook dedicated to the search for Spierer has attracted nearly 6,000 members.
More than 3,000 people are following the effort to find Spierer on Twitter.
Dean Goldsmith said Bloomington is a safe community. He said nothing like this had happened in recent memory.
In May of 2000, Indiana University student Jill Berhman, who grew up in Bloomington, disappeared while riding her bike through town. Her body was found three years later. In 2006 John R. Myers II was convicted of murdering her.