Four-year-old D'Wan's mother, Dwanna Harris told authorities that he disappeared while shopping with her at The Wonderland Mall in Livonia, Michigan on December 11, 1994.
Dwanna stated that Sims was walking along the corridor between the Target store and the main area of the shopping mall with her when he suddenly vanished. D'Wan has never been heard from again.
Investigators administered two polygraph tests to Dwanna shortly after Sims disappeared and she failed both of the attempts.
Authorities stated that they did not believe Dwanna's story and believed that D'Wan was never at The Wonderland Mall with his mother the day he disappeared. No witnesses saw him there and he doesn't show up on the surveillance camera tapes.
Dwanna has maintained her innocence and said in 1995, she was in therapy to deal with her son's disappearance. Relations between law enforcement and Dwanna have been strained due to their conflicting beliefs, but Dwanna told the media that she keeps in contact with all agencies regarding her son's case.
Dwanna Harris has never been charged in connection with D'Wan's disappearance due to lack of evidence and no suspects have been identified. Her mother says Dwanna was emotionally devastated by her son's disappearance.
There have been numerous leads about D'Wan's whereabouts throughout the proceeding years, but they all failed to produce any evidence.
One possible lead came in 1999, when investigators received a tip from another law enforcement agency regarding D'Wan's fate. Authorities excavated an area in Hines Park in Dearborn Heights, Michigan and discovered a bag of bones buried at the location. DNA tests were performed on the evidence, and testing proved the bones were not D'Wan's remains.
In November of 2003, the possibility was raised that Sims may be an unidentified child whose skeletal remains were found in Dekalb County, Georgia in 1999.
The child is an African-American male approximately four feet tall. He was between five & seven years old when he died and was wearing red denim jeans, new size 11 brown suede Timberland boots and a long-sleeved hooded pullover shirt. The body of the shirt was blue plaid material and the sleeves and hood were dark blue thermal material.
DNA tests were conducted using DNA from D'Wan's parents, comparing them to the unidentified child's DNA. The testing ruled out the possibility that D'Wan was the boy.
D'Wan remains missing. At the time of his disappearance, he enjoyed watching television, especially the Mighty Morphin Power Rangers. His case remains open and unsolved. He was last seen wearing a blue winter jacket over a multi-colored windbreaker, dark blue sweatpants and low-top FILA sneakers.