ATLANTA, Georgia (CNN) -- For more than a year, the criminal justice students jotted details of Chandra Levy's final movements onto a huge timeline taped to a classroom wall, culled the Internet and public records for scraps of information, and pored over the model skeleton laid out on a table in their lab at Bauder College in Atlanta, Georgia. Antonio Wilson, from left clockwise, Lashaun Bates, Jennifer Gosdin and Charna-Marie Dixon. They spent hours with the slain intern's mother, Susan Levy, who flew from her home in California to Atlanta just to talk to them. Chandra Levy had studied criminal justice in college, too.
@highlight
Group can't divulge whom it named as a suspect in Chandra Levy case
@highlight
Arrest warrant "completely validates 15 months of work," professor says
@highlight
Professor recalls Levy's mother being grateful that students kept spotlight on case
@highlight
About 80 students at Bauder College are members of crime club
"You could see the hurt in her face," @placeholder recalled.