MOULTRIE, GA (WALB) - Jeffrey Peacock, 25, has been arrested for the murders of the five young adults found in a burned house over the weekend in Colquitt County.
Agents said the victims were shot inside their residence, which was then burned in an attempt to cover up the murders.
Officials originally stated that Peacock had escaped the flames and was taken to the hospital.
The official investigation began when local agencies asked the GBI for their assistance with the case.
An autopsy showed that all five victims suffered from gunshot wounds.
In addition to the murder charges, Peacock is charged with arson.
Peacock served in the US Marine Corps.
The last status update he posted on Facebook Sunday afternoon after the deaths of his friends said "Well I don't think this year can get any worse."
The current cover photo on his Facebook page is a t-shirt that says "breathe easy... don't break the law."
The last public picture on his Facebook page shows him and two of the friends he's accused of killing.
Peacock's motive for these murders is unknown at this time, and he is being held in the Colquitt County jail.
One young woman who lives down the street from the crime scene said that the violence makes her feel uneasy.
"It's weird how something like that could happen here," said neighbor Georgina Lievanos. "Somewhere, where everybody knows each other. a very calm place to be. And all of the sudden something like this happens."
The investigation is still ongoing, and anyone with information is ask to contact the GBI or Colquitt County Sheriff.