"It bothers me that someone could be missing for so long that no one would give attention to the circumstances," said Chuck Barker, the lead investigator with the Dallas County Sheriff's Office.
Those circumstances, he said, are "strange and disturbing."
Sheriff's deputies arrested John Aldrich on a second-degree murder charge after he allegedly admitted to beating his 34-year-old stepsister Nancy Harvill and then burying her body in a shallow grave in a workshop connected to the Spring Street house where they lived with other family members.
That was in October 2011 after the two had an argument.
Family members thought Harvill had simply run away but now, 14 months later, one of them became suspicious and called authorities.
Barker said Aldrich admitted he went into a blind rage, blacked out, and could only recall scattered memories of burying Harvill.
Aldrich did not have anything to say to the news media as he was being escorted by sheriff's deputies to a bond hearing early Wednesday afternoon.
Family members did not want to comment either.