This week’s Real Murders of Atlanta episode takes on the murders committed by John Peek.

The description of the episode, “A Deadly Union”:

The grisly double-murder of two Lockheed employees stuns their families and leaves investigators baffled. As the case languishes for years, investigators are unable to make an arrest until the prime suspect kills again.

In this exclusive clip, “After coming up empty while investigating Carol Marlin’s disappearance, police decide to see what they can dig up on Maggie Ginn.”

Watch the clip below:

Real Murders of Atlanta follows various homicide cases and their eventual conclusions. Viewers will learn more about the class and race boundaries that affect the cases, as well as how far people will go to secure the bag. As the series description states:

“Real Murders of Atlanta” portrays the unbelievable cases of homicide that highlight the boundaries between gentrified Southern dynasties, hip hop hustlers and the flashy nouveau riche of this metropolitan mecca of music, entertainment and tech. Told by the investigators, witnesses, reporters and loved ones who have direct connections to the cases, each hour-long story brings Atlanta’s hustle and deadly decadence into sharp focus. It’s the dark side of the New South, where deadly battles for status and affluence emerge between those who are willing to kill for the good life and those willing to kill to keep it.

Real Murders of Atlanta airs Sundays at 8/7c on Oxygen.