DNA Breakthrough Links Georgia Man to Four Cold-Case Apartment Rapes from 1986

Glenn Daniel Plybon, 60, of Carlton, Georgia, spent nearly four decades as an unidentified suspect in a string of apartment rapes before investigators armed with forensic genetic genealogy tracked him to his front door. The Georgia Bureau of Investigation and the Lawrenceville Police Department announced his arrest on March 18, 2026, charging him with three counts of rape connected to assaults that took place during the summer of 1986.

The attacks targeted three women in their apartments across Lawrenceville and unincorporated Gwinnett County. Each time, the suspect fled the scene before any victim could contact law enforcement. Investigators working the original 1986 cases noted clear similarities across the incidents, including the method of entry and the suspect's physical description, but despite interviews and identification efforts, the case went cold.

It stayed that way for decades until 2025, when investigators reopened the case and submitted the original DNA evidence for modern forensic analysis. A private forensic genetics company, referenced in local broadcast reporting as both "Authorum" and "Aram," assisted Lawrenceville police in developing a suspect through genetic genealogy. According to 11Alive's live broadcast, this was the firm's 29th case in Georgia alone resulting in a suspect identification through forensic genetic genealogy. Company representative Michael Vogen described the process in an on-air interview: "It doesn't take long for these cases to get momentum and all of a sudden you start getting some familial names and surnames and maybe some of those surnames start tracing back to the areas of occurrence."

Officers arrested Plybon on Wednesday morning at his home in Oglethorpe County. He was booked into the Gwinnett County Jail without bond on multiple felony rape charges.

Lawrenceville Chief of Police John Mullen credited DNA technology with delivering "long-awaited justice," adding in a statement: "Even after nearly 40 years, modern technology and strong partnerships between law enforcement agencies helped us solve this decades-old case, hold this offender accountable, and bring some measure of peace to the victims and their families." GBI Director Chris Hosey echoed that framing: "Regardless of how much time has passed, a single new lead or advancement in technology can bring resolution to any case, including decades-old sexual assaults. Every victim deserves justice, and we will not relent in our pursuit of it."

The case is not necessarily closed at Plybon's doorstep. According to 11Alive's on-scene reporting from outside Gwinnett County Jail, the entry of his DNA profile into law enforcement databases creates the possibility of connecting him to additional crimes in the region as other agencies update their records.