Jorgen Andersen was 20 when he vanished after failing to board a flight from San Francisco International Airport that he’d bought for a family trip to Jamaica. He was last seen on February 17, 1980, in San Rafael, where he lived in an apartment; investigators found no sign of him there.

Authorities located an outstanding arrest warrant for a parole violation and automobile theft, but it is unclear whether those charges played any role in his disappearance. He was known by the nicknames Jon or Andy, may also have used the name Jon Eric Anderson, and had a snake tattoo on his right forearm. Missing person flyers were distributed and DNA was collected during the investigation, but the case has since gone cold and his fate remains unknown.

If anyone knew Jorgen’s movements in the San Rafael or San Francisco area around February 17, 1980, or has information about the names he used, please come forward.