Robert Frederick Carr III was born on December 22, 1943, in Virginia. He had a very difficult childhood. He claimed that he was forced into prostitution when he was only 11 years old. This early trauma had a big impact on his life.

As a teenager, Robert got into trouble with the law. He started stealing cars and often found himself in trouble. His rebellious behavior continued throughout his teenage years.

When Robert became an adult, he decided to move to Connecticut. In Connecticut, he tried to start fresh. He found a job fixing TVs, which gave him some stability. During this time, he also started a relationship and eventually got married.

Despite these positive changes in his life, Robert had dark thoughts. He later admitted that while he was in relationships, he often fantasized about committing violent acts.

In late 1972, Carr visited Florida. On November 13, 1972, he picked up 11-year-old friends Todd Payton and Mark Wilson, who were hitchhiking from North Miami Beach. The back doors in his car were disabled, and the trunk was filled with food, jars of petroleum jelly, and a shovel. Carr raped the boys and strangled Payton. Four days later, he strangled Wilson. After the murders, he drove to Mississippi and Louisiana, burying one boy in each state. Both boys were reported missing by their parents when they didn't return home.

Tammy Ruth Huntley, a 16-year-old girl, vanished while waiting for her mother to pick her up. Carr drove her from Miami to Mississippi. On April 7, 1972, after holding her captive in the woods for 10 days and raping her, he strangled her. He later said, "I killed her because she looked like she was getting despondent."

In 1973, Carr was convicted of an attack in Connecticut but was paroled in 1976. After his release, he killed his fourth and final victim, 21-year-old Rhonda Holloway, and buried her body in a rural area.

On May 30, 1976, Carr raped a hitchhiker at knifepoint. During the attack, a Metro police officer found the car and witnessed the crime, leading to Carr's arrest. During interrogation, Carr surprised detectives by confessing to four murders, explaining the crimes in detail. Carr, along with detectives, went on a mission to find the bodies.

Carr confessed that after Huntley's murder, he also raped four more girls and two boys. Only four rapes were reported, for which he was charged and pleaded guilty.

Carr received a life sentence after pleading guilty, which spared him the death penalty. He served part of his sentence at a state mental hospital but was kicked out after hoarding wire cutters and pliers. He then began mailing letters to prosecutor Ed O'Donnell, who had worked on the case. On July 6, 2007, Carr died at the Union Correctional Institution from unspecified causes.