Mariah Edwards was 18 when she disappeared from Blue Island, Illinois; she was last seen on September 28, 2010. She is described as 5 feet 2 inches tall, about 100 pounds, with black hair and brown eyes. At the time she went missing she was reportedly wearing a black sports bra. The disappearance was reported to the Cook County State’s Attorney’s Office on January 27, 2011.

Investigators later focused on a man named Sonny Pierce while probing a separate crime. During a search of his residence they found a videotape that depicted Pierce with a young woman who appeared lifeless; authorities identified the woman as Mariah and investigators say that led them to believe she had been killed. Prosecutors charged Pierce in April 2011 in connection with the deaths of Mariah and two other 18-year-old women, Kiara Windom and Kimika Coleman. Pierce later denied involvement, and the charges tied to Mariah and Kimika were eventually dropped. Mariah’s body has never been recovered.

What information could help locate Mariah or clarify what happened to her?