Reginald Dexter Carr Jr. was born on November 14, 1977, in Dodge City, Kansas. Reginald was the older brother of Jonathan Daniel Carr, who was born on March 30, 1980. The brothers grew up together and were close in age.

On December 8, 2000, Reginald Carr Jr. and his brother Jonathan Carr began a series of violent crimes in Wichita, Kansas. Their first victim was Andrew Schreiber, a 23-year-old assistant baseball coach whom they robbed and wounded during a robbery. Just days later, on December 11, they shot Ann Walenta, a 55-year-old cellist. She was shot three times while trying to escape in her car, and she later died from her injuries.

The most significant event started on December 14, when the Carr brothers broke into a house at 12727 East Birchwood Drive. This house was chosen at random and contained five victims: Brad Heyka, Heather Muller, Aaron Sander, and Jason Befort, along with his girlfriend, known as "Holly G." The Carrs searched the house for valuable items. During this time, they discovered an engagement ring that Jason Befort had planned to use to propose to Holly.

After robbing the house, the Carr brothers forced all five people to undress and tied them up. They committed repeated sexual assaults on the victims. The brothers then took their victims to several ATMs, forcing them to withdraw cash from their accounts. After this, they drove the victims to a closed soccer complex on the outskirts of Wichita. There, they shot all five of them execution-style in the back of the head.

Holly G. survived because a plastic barrette deflected a bullet away from her head. She managed to escape, walking over a mile in cold weather to seek help. Once she reached a nearby house, she reported the incident to the couple who took her in until the police arrived.

After leaving the scene, the Carr brothers returned to the house to search for more valuables. They also killed Holly's pet dog with a golf club. The following day, law enforcement captured the Carr brothers. The investigation included witness statements from both Andrew Schreiber and Ann Walenta, who identified Reginald as one of the attackers.

The Carr brothers faced multiple charges, including murder, kidnapping, and robbery. They were convicted on nearly all counts in 2002. Reginald was convicted on 50 counts, while Jonathan was convicted on 43 counts. They each received death sentences, along with life terms for the other charges. Over the years, there were various legal battles regarding their death sentences. These cases went through multiple appeals, including decisions from the Kansas Supreme Court and the U.S. Supreme Court. Ultimately, the U.S. Supreme Court reinstated their death sentences in 2016.