Marshall Lee Gore was born on August 17, 1963. Not much is publicly known about his early childhood or education, but by his adult years, he had built a long rap sheet of criminal behavior. Before the murders, he had already been arrested for various violent offenses, including theft, sexual assault, and battery. His erratic and dangerous behavior became more violent in the late 1980s. Known for being manipulative and aggressive, Gore often targeted vulnerable women. 

In 1988, Marshall Lee Gore committed a series of violent attacks in Florida that left two women dead and another barely surviving. On March 11, 1988, Gore raped and murdered 30-year-old Susan Marie Roark in Columbia County. Just days later, on March 16, he killed 19-year-old Robyn Novick in Miami-Dade County. Both women were brutally attacked—beaten, stabbed, and discarded like trash in remote areas. In between those murders, Gore also raped and attempted to kill Tina Coralis, leaving her for dead before kidnapping her 2-year-old son and fleeing the state. Thankfully, both Tina and her child survived.

His capture came shortly after, in April 1988, when he was arrested in Texas. The evidence against Gore was overwhelming—DNA, physical evidence, witness accounts, and survivor testimony. Despite multiple attempts to delay proceedings with claims of mental instability, he was convicted and sentenced to death in 1990.

Over the next two decades, Gore filed appeals and continued to display bizarre behavior during court hearings, often ranting nonsensically. But after years of legal battles, he was executed by lethal injection at Florida State Prison on October 1, 2013.