FOUKE, AR – What caused a 12-year-old boy to do the unthinkable?

That’s what residents in a small Arkansas town are asking themselves as a young boy stands accused of robbery and murder.

Last Thursday morning, a newspaper delivery woman found the body of 21-year-old Christa Shockley, a part-time store clerk and college student, on the floor of the E-Z Mart convenient store she worked at. She had been shot to death.

Hours later, police identified the suspect as a 12-year-old boy. Authorities said they recovered the clothes the boy was wearing and the gun he used in the shooting.

Because of his age, few details are being released about the suspect, who has been charged with capital murder and aggravated robbery. He is being held at a juvenile dentation center, according to the Texarkana Gazette.

It was the town’s first murder in decades, according to the Washington Post.