BRUNSWICK, Ga. — The investigation into the disappearance of a 6-year-old boy took another bizarre twist Wednesday after police filed charges of "concealing the death of another person" against the father, mother and family friend of a "person of concern" in the case, FOXNews.com has learned.

Glynn County police arrested David Edenfield, father of George Edenfield, a 32-year-old sex offender who was taken into custody on unrelated charges of violating his parole, which prohibits contact with anyone under 18 years of age. Police told FOXNews.com that George Edenfield remains a "person of concern" in their investigation.

Also arrested was Donald Dale, described as an Edenfield family friend. George Edenfield's mother, Peggy, was taken into custody on Monday.

All but George Edenfield were charged with obstruction of justice and making false statements in the investigation into the disappearance of 6-year-old Christopher Michael Barrios. They are considered "people of interest," Glynn County Police Capt. Jim Nazzrie said Wednesday.

Donald and Peggy Edenfield and Dale also were charged with "concealing the death of another person." Police told FOXNews.com that the charge stems from conflicting statements made by George and Peggy Edenfield that they knew the whereabouts of Christopher's body.

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