The suspects in custody for their role in the death of 6-year-old Christopher Michael Barrios may be indicted as early as Wednesday, FOXNews.com has learned.

Glynn County District Attorney Stephen Kelly said Monday he will present the case to the grand jury on Wednesday and that the investigation is ongoing and more evidence may be collected.

"I have sufficient evidence to go ahead to the grand jury," Kelly told FOXNews.com, adding "oh, yes" when asked if he has enough evidence against the suspects for the charges to stick.

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Kelly explained that in Georgia, once a case is presented to the grand jury, its members meet in secret and decide whether to return an indictment. If the jury decides to indict, its decision goes to the court bailiff, and lawyers need to wait for a judge to proceed with scheduling arraignments and hearings.

"I would expect the whole process to be completed on Wednesday … so long as I have a judge," Kelly said. "We've assembled a team of prosecutors. We'll be working all day and we'll continue to work until we have it resolved."

He said this case has "taken the highest priority right now" for his team of four prosecutors.

Four suspects are in custody for having a role in Christopher's abduction and death: George Edenfield, a 32-year-old convicted sex offender; his parents, David and Peggy Edenfield; and family friend Donald Dale. The Edenfields lived in a mobile-home park directly across from the Barrios family.

Although Kelly would not give details about how Christopher died or about what charges he may seek against the suspects, Glynn County Police Chief Matt Doering said he told Christopher's father that "he did not suffer."

An autopsy was conducted at the Georgia Bureau of Investigation's lab in Savannah. The results have not been released.

A weeklong search ended last Thursday when two Department of Natural Resources workers found Christopher's body in a field not far from his home. Doering then said he expected murder charges to be filed against the Edenfields and Dale.

The four for days had fed police false leads that often led them on wild goose chases in and around the area where Christopher was last seen. The area where Christopher was found was not one toward which the suspects directed police.

Christopher was last seen the night of March 8 walking on a road not far from the homes of his father and grandmother, who live in a mobile home park about a half-mile from Interstate 95 just outside the port city of Brunswick on the Georgia coast.

Christopher's funeral will be held Thursday at the Edo Miller Funeral Home in Brunswick, Ga., at 2 p.m. Visitation will be Wednesday from 2 p.m. to 4 p.m., and 6 p.m. to 8 p.m. A community reception was to follow the funeral Thursday afternoon in downtown Brunswick.

WAGA-TV's Tony Thomas contributed to this report.