Taylor, Walker's girlfriend, was shot and killed in her bed by plain clothes police officers in Louisville on March 13. Walker claims the officers entered without identifying themselves, and fired a warning shot at men he believed were intruders. The officers involved denied Walkers' claim, and allege that they did identify themselves before entering.
Mattingly was shot in the leg, allegedly by one of Walker's warning shots -- although it has not been conclusively proven that the bullet that struck Mattingly was fired from Walker's gun. Officers responded by firing 32 shots, striking Taylor six times.
Walker was arrested and faced charges of first-degree assault as well as attempted murder of a police officer, although the charges were later dropped entirely.