Julia Lynn Womack was born on July 13, 1968, in Marietta, Georgia. Shortly after her birth, she was adopted by the Womack family. Julia's early life changed significantly when her adoptive parents divorced when she was five years old. After the divorce, Julia's mother, Helen Womack, gained custody of her. Soon after, Helen remarried, but Julia did not have a good relationship with her new stepfather, D.L. Gregory.

As Julia grew up, she faced challenges that led her to struggle with substance abuse during her teenage years. This issue became serious enough that she was admitted to a drug treatment clinic in Atlanta. Despite these difficulties, she eventually found work as a 911 dispatcher for Cobb County, Georgia, in the 1990s. Julia also tried to become a police officer but did not pass the psychological exam required for the position.

In 1991, Julia Lynn met a police officer named Maurice Glenn Turner, and the two began a relationship. They married in August 1992. However, their marriage faced difficulties due to financial issues after Julia left her job. They often argued about money and eventually began sleeping in separate bedrooms.

During this time, Julia started an affair with a firefighter named Randy Thompson. Glenn Turner was unaware of this relationship. By 1995, Glenn was planning to leave Julia and file for divorce. Before he could take these steps, Glenn fell ill and went to the emergency room, complaining of flu-like symptoms. He was treated and released but was found dead the next day. After his death, Julia moved in with Randy Thompson and collected a significant amount of money from Glenn's death and pension. They had children together, but their relationship also faced issues, leading Randy to move out around 2000.

Julia Lynn Turner was involved in the deaths of two men, her husbands, under suspicious circumstances. The first man was Maurice Glenn Turner, who died on March 3, 1995. At the time of his death, he had similar flu-like symptoms and was treated at a hospital. His cause of death was ruled as natural causes due to an irregular heartbeat. After Glenn's death, Lynn collected a significant amount of money from his life insurance and pension.

On January 22, 2001, Lynn's second partner, Randall "Randy" Thompson, also died under similar conditions. He too reported feeling ill before his death. Lynn made him Jell-O the night before he passed away. He had also been treated for flu-like symptoms shortly before his death. His cause of death was also determined to be an irregular heartbeat, leading to further investigation since both men died in nearly identical ways.

Following Randy's death, police reopened the investigation into Glenn's death. Both families found the circumstances troubling. Blood tests revealed that ethylene glycol, a substance found in antifreeze, was present in Randy's system. Authorities later exhumed Glenn's body and found the same chemical in his kidneys. They discovered that Lynn had once asked at an animal shelter about how to euthanize a stray animal using poison. Photos from crime scenes showed antifreeze in Glenn Turner's garage.

On November 1, 2002, Lynn was arrested for the murder of Glenn Turner. In 2004, she was convicted of his murder. She faced another trial in 2007 for the murder of Randy Thompson and was found guilty again. The prosecution argued that she poisoned both men by putting antifreeze into their food. Lynn was sentenced to life in prison without the possibility of parole.

Julia Lynn Turner was found dead in her prison cell on August 30, 2010. Her death was ruled a suicide, reportedly from an overdose of prescription medication.