Dawn Marlene Allen, 50, vanished from her home in Carroll, Iowa, after being last seen about 8:30 p.m. on May 4, 2011. She did not report to her shift the next morning at the Subway where she had worked for more than 20 years. Her white Chevrolet Blazer was found abandoned in the parking lot of The Piranha Club early the following day; the vehicle had not been at the bar when it closed the previous night, creating a troubling gap in the timeline.

Dawn had been dating a 54-year-old married man, James Snovelle, who had told her he was separated from his wife. Investigators later linked Snovelle to the case; when officers reached him in Kansas five days after Dawn went missing, he fled and then took his own life before he could be interviewed. Authorities found no direct evidence tying him to Dawn’s disappearance, but they consider him a person of interest and suspect foul play.

Extensive searches and ongoing investigative efforts have not located Dawn, and her whereabouts remain unknown. Anyone with information about Dawn, her movements on May 4, 2011, or the whereabouts of her vehicle that night is asked to come forward.