A Lewisville police affidavit alleges that Bobbie J. and Fred Mitchell’s grandson may have premeditated the attack on the county commissioner and her husband and broke into their house, even though he lived with them.

There are new details in the savage attack that left Denton County Commissioner Bobbie Mitchell critically injured and her husband dead .​ The couple’s adult grandson is in jail, accused of the attack.​ Editor’s note: The following contains disturbing details of the attack. Reader discretion is advised.​