Small, who referred to the victim as Sarai and believed her to be homeless, had occasionally allowed her to shower and sleep in her home.
Small claimed she had been spying on Sarai, asserting that Sarai had mistreated and physically abused her over the past few months.
According to the arrest report, security camera footage purportedly showed Small emerging from the bushes to ambush the victim as she walked toward the library parking lot.
The victim was pronounced dead at the scene, and the gun was discovered at the crime scene.
Joyce Ann Small now faces a charge of first-degree murder and is being held without bail at the Turner Guilford Knight Correctional Center.
While jail records do not specify her next court appearance date, reports suggest that she is currently represented by a public defender.
Police say that on Sept. 19 shortly after 1 PM at the 520-mile marker on Interstate 20, a suspect named Jason Rashad Williams from Danville, Illinois was driving an 18-wheeler when he fired shots at a vehicle with four occupants inside. One of the four passengers, Caitlin Elizabeth, 31, was struck by a bullet and pronounced dead at the scene.
Affectionately known as “Caty” and “Teddy,” the victim was traveling home to Baton Rouge with her sister when the shooting took place, according to Van Zandt County Sheriff Joe Carter, who added that he believes road rage was the motive for the shooting.