Forensic Genealogy Leads to Arrest in 1986 Lawrenceville Cold Case Rapes
LAWRENCEVILLE, Georgia – Genetic Genealogy Leads to Arrest in 1986 Lawrenceville Cold Case Rapes
The Lawrenceville Police Department, in coordination with the Georgia Bureau of Investigation, announced the arrest of 66 year old Glenn Daniel Plybon on Wednesday, March 18, 2026. The arrest connects Plybon to a series of violent rapes that occurred within the City of Lawrenceville and unincorporated Gwinnett County during the summer of 1986.
The original investigation began four decades ago following multiple incidents where adult female victims were sexually assaulted inside their apartment residences. At the time, investigators noted similarities between the cases, including the suspect’s physical description and method of entry, but the perpetrator fled each scene before law enforcement arrived. Despite extensive interviews and identification procedures, the cases remained unsolved for 39 years.
In 2025, investigators reopened the cases and resubmitted evidence for modern forensic analysis. Advances in DNA technology and investigative genealogy ultimately led authorities to identify Plybon as the individual responsible.
“Our detectives’ persistence and dedication show that we never give up fighting for victims of crime,” said Chief Mullin. “This arrest demonstrates how advancements in DNA technology can bring long-awaited justice. I am grateful to the Georgia Bureau of Investigation for their assistance in this case. 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 also commented on the breakthrough. “The GBI Cold Case Unit is committed to partnering with law enforcement agencies to thoroughly investigate unsolved crimes,” stated Hosey. “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 investigation remains active. The Lawrenceville Police Department encourages anyone with information related to these incidents to contact their office.
