Kirsten Joy Kryszak was 18 when she vanished from Memphis on January 1, 2001, after attending a New Year’s Eve party. She was last seen with her boyfriend, Brent Wolverton, and an acquaintance, Josh Anders, both members of a local band that played at the party. The one point all accounts agree on is that Kirsten left in a blue 1988 Ford Aerostar van that belonged to another partygoer; neither Kirsten nor the van has ever been found.

Eyewitness accounts conflict. Anders said Kirsten asked him for a ride and that after hours of driving he dropped her at Wolverton’s apartment, at which point she reportedly jumped into the driver’s seat, circled the block laughing and drove off. Wolverton said he saw Kirsten arrive later that afternoon with Anders and the van’s owner, then heard a call about 2:00 p.m. saying she had stolen the van. Investigators could not locate a theft report filed by the van’s owner. Kirsten had a history of running away and substance use, but family members say she always contacted them during previous absences; there has been no activity on her Social Security number since she disappeared.

Her case was moved to the homicide division in 2008 after new tips and media attention revealed several witnesses had not been interviewed in years. What details from that night or about the van might help explain Kirsten’s disappearance?