Freund was found mentally competent by a psychological examiner, the Herald reports.
Andrew Freund Sr. was charged with five counts of first-degree murder, two counts of aggravated battery, one count of aggravated domestic battery, two counts of concealment of a homicidal death, and one count of failure to report a missing or child death. A.J.'s mother, Joann Cunningham, was charged with five counts of first-degree murder, four counts of aggravated battery, two counts of aggravated domestic battery, and one count of failure to report a missing or child death.
WATCH: AJ Freund's body found 6 days after he was reported missing
A.J. Freund was found in a shallow grave, wrapped in plastic six days after he was reported missing last April, police said.
Last May, Joann Cunningham gave birth to a baby girl in jail. The baby is being held in protective custody.
SEE INSIDE: Photos from AJ Freund's home show filthy conditions
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