The parents of a missing I.U. student have appealed a judge's dismissal of their lawsuit against two men who were with their daughter the night she vanished. Lauren Spierer's parents filed their appeal, Friday, with the 7th U.S. Circuit Court of Appeals. A federal judge dismissed Robert and Charlene Spierer's suit, early last week, ruling they failed to present evidence showing Corey Rossman and Jason Rosenbaum had anything to do with her disappearance. The suit maintained the men gave their daughter alcohol and didn't make sure she returned safely home, leading to her presumed death. The men's attorneys argue there's no proof Lauren Spierer isn't alive. The 20-year-old New York, woman vanished in 2011, after a night out in Bloomington.