Deputies said a 10-year-old boy shot his 15-year-old sister multiple times and then shot and killed himself on Thursday night.
Both children were rushed to Hermann Memorial Hospital in Houston, according to the Huntsville Item. Coby Tucker was pronounced dead on arrival while his sister Ashley Tucker underwent surgery for multiple gunshot wounds and was listed in stable condition.
Deputies have yet to establish a motive for the shooting.
"The 10-year-old gained access to a handgun, he walked into the 15-year-old's room and discharged the weapon multiple times in the direction of his sister," Det. Gregory Williams said, according to KPRC.
Click2Houston reports that officials have not said whether the children's parents will face any charges. Deputies have never been called to the family's home before.
“There is no reason for us to believe that this was a case of negligence by the parents,” Walker County Sheriff Clint McRae said, according to the Item. “The firearm was in a secure safe, but the boy was somehow able to gain access. This is a terrible tragedy that happened and our thoughts are with the family.”