The Warren County Coroner’s Office is handling the autopsy.
Clair, 46, said her brother, a 1996 Hamilton High School graduate, was an avid softball player. He had moved into a Middletown apartment about two years ago, then into a detached garage on Arlington Avenue two months ago.
She said her mother was notified by a text message Friday night that her son was involved in an altercation. Another text said her son had died.
Clair drove her mother to Atrium Medical Center, and they were transported to the Middletown Division of Police Department, where they were interviewed by a detective. It wasn’t until 2:30 a.m. Saturday — an estimated four hours after the stabbing — they were told Brock had died.
“Very shocked,” Clair said of her reaction.
Now, she said, she wants “justice served” for her brother.
Editor's Note: A previous version of this story included incorrect information about Carlton Brock's background.