McCuin, wearing a jail-issue red jumpsuit, was not asked to enter a plea as he appeared before state District Judge Jack Skeen Jr. on Monday. Skeen continued McCuin's bond at $2 million and appointed an attorney to represent him.
Authorities said McGuin's comments in a 911 call that alerted them to the hideous discovery led them to believe he may have intended to eat his girlfriend's remains, but said it is unclear whether McCuin consumed any part of her body.
Smith County Sheriff Lt. Larry Wiginton told the Tyler Morning-Telegraph that McCuin told investigators that God made him kill Shearer.
"When he said God told him to do it, one of the investigators looked at him and just said, 'What did you say?'" according to Wiginton.
The judge sealed the arrest and search warrant affidavits and issued a gag order in the case, which has shocked this East Texas town about 110 miles east of Dallas.