A fourth man has been charged in connection with a double homicide, where two Athens men who had been missing for about three months were found in a Gwinnett County storage unit, authorities said.

However, despite having four suspects in custody, no murder charges have been filed in the death investigation of Joshua Lee Jackson and Derrick Davion Ruff, Channel 2 Action News reported.

MORE: Bodies of missing Athens men found in Gwinnett storage unit

Joshua Lee Jackson (left) and Derrick Davion Ruff went missing from Athens on Dec. 18. Nearly three months later, police found their bodies in Gwinnett County.
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The latest suspect, 24-year-old Shabbazz Larry Guidry, faces concealing death and gang charges after he was arrested Tuesday, Gwinnett jail records show. He was denied bond Wednesday at his preliminary hearing.

When asked by the judge if he wanted to have a defense attorney appointed to him, Guidry appeared to smirk, pondering the decision for about five seconds before saying, “I guess so,” Channel 2 reported.

Lesley Chappell Green, 30, remains in jail without bond on the same charges, AJC.com previously reported.

Investigators told Channel 2 the alleged gang members haven’t been cooperating with police about who fired the gunshots that killed Jackson and Ruff, who were both 25.

RELATED: New footage released as search for missing men enters second month

Lesley Chappell Green

Credit: Gwinnett County Sheriff's Office

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Credit: Gwinnett County Sheriff's Office

Their bodies were discovered after a joint investigation by the FBI, Athens police and Gwinnett police led officers to an 100-acre area in Gwinnett off Lawrenceville Highway in March. The two were last seen in December traveling in a Ford Expedition in Athens before their vehicle was found abandoned in a neighborhood off Monfort Road outside of Lawrenceville three days later.

“Based on the evidence at the scene, we believe that they were shot inside the storage unit,” Gwinnett police spokeswoman Cpl. Michele Pihera previously said.

Detectives also said they’ve linked the investigation to the Gangster Disciples, but they haven’t said what, if any, affiliation the suspects or the victims have to the criminal organization.

RELATED: Feds say they've smashed the Gangster Disciples crime ring

The other two suspects — Justin Jamal Davis, 29, of Snellville, and Robert Maurice Carlisle, 32, of Lithonia — remain on the run. Police have warrants for their arrests on the same four charges.

Robert Maurice Carlisle (left) and Justin Jamal Davis

Credit: Gwinnett County Police Department

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Credit: Gwinnett County Police Department

The arrest warrant for Guidry alleged he was heard “speaking on an FBI wiretap case about removing the bodies of two murder victims from a storage unit to hide the crime ...” Carlisle was also allegedly heard calling the bodies “spoiled milk” and that they needed “to call the janitor to clean it up.”

Jackson’s father, Gerald, told Channel 2 he hopes investigators discover who shot and killed his son soon.

“I didn’t know any of these people,” Gerald Jackson told Channel 2. “They know what they did so ... eventually they will be caught.”

Police told the news station more arrests are expected.

Anyone with information is asked to contact Gwinnett detectives at 770-513-5300. Tipsters can remain anonymous, and be eligible for rewards of up to $2,000, by contacting Crime Stoppers Atlanta at 404-577-8477, texting information to 274637 or visiting the Crime Stoppers website.

In other news:

Gwinnett County police are searching for a masked gunman who robbed a??Lawrenceville gas station off Duluth Highway early Saturday morning.