Editor's note: HLN is airing a special "Nancy Grace: America’s Missing" with the goal of trying to find 50 people over the next 50 days.
Nancy Grace will take a look at several cases around the nation in hopes of helping to solve them. This was the second case.
[Updated Wednesday at 9:43 a.m.] Hasanni Campbell, who suffers from cerebral palsy and wears braces on both legs, went missing after being with his father outside a shoe in Oakland, California on August 10, 2009.
His foster father, Louis Ross, remains the prime suspect in the missing person case. He was the last to see the 5-year-old boy after leaving him in the car and going into the store with his sister. Suspicion has surrounded Hasanni’s foster parents who were both arrested on suspicion of murder but were never charged.
"We never believed Hassani made it to Oakland on the day he was reported missing," Oakland Police Department Sgt. Gus Galindo told Nancy Grace Tuesday night in an interview.
Asked if he believed Campbell was actually murdered at his home, Galindo told Grace: "based on my knowledge of the case, yes, I do."
However his parents maintain they had nothing to do with the murder and have kept up a website to try and ask for his safe return.
"Born on September 24, 2003, the first few of years of his life were not the most ideal but that withstanding there is a potential in him that many overlook because of a lack of understanding about his condition," his family says on a missing person's website. "Diagnosed with Cognitive Delays and Cerebral Palsy, umbrella term used to describe a disease that affects a person's motor skills, Hasanni is not unlike any other child. Some of his favorite things are SpongeBob, Spiderman, playing in the little pool we have set up in the backyard, and being read to. Hasanni loves the water. He would always ask, is it going to rain today? or Is that the beach as we drove home?
"If you saw him you would most likely think of him as a child small for his age that would seem talkative or quiet depending on his mood at that time."
CNN affiliate KGO stories:
Hasanni Campbell's foster dad remains chief suspect
Anniversary of Hasanni Campbell's disappearance
Search continues for Hasanni Campbell
Jennifer Campbell says she's innocent
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