12/03/2012 at 12:10 PM EST
On the evening of Nov. 18, Judith and James Jackson logged onto Facebook to find a horrifying message. Their daughter's college friend posted on their wall, consoling them about the loss of their daughter, Jasmine.
Until that moment, the Jacksons thought their daughter was alive and well, enjoying her freshman year at Valdosta State University in southern Georgia.
Jasmine Benjamin, a 17-year-old nursing student, was found dead in her dorm's common study area around noon that day. Authorities soon determined that she had been dead for at least 12 hours but her roommates thought she was simply sleeping on the study room couch. Because the body had been moved, Valdosta police suspect foul play.
The news has left her parents reeling.
"That's the most disturbing part of it. Aren't there RAs?" her mother, Judith Jackson tells CBS
. "What kind of school is this that they don't know someone's laying on the couch – to go check on them after a certain amount of hours?"
Valdosta State University released a statement saying it was "continuing to work with law enforcement agencies in their ongoing investigation into the death of Jasmine Benjamin."
Police are still investigating. Autopsy and toxicology results are not back yet.
"We want answers," says Jasmine's stepfather, James Jackson. "This family needs closure. It's extremely tough when you don't know, and you have no answers."