According to the Baltimore Sun:
Late Tuesday night Antony Kinyua notified police that his son had found human remains in the basement of the house. Upon their arrival, Jarrod Kinyua (the brain eater's brother) told police he found a human head and two human hands inside metal tins, under a blanket in the laundry room.
When he asked Alexander Kinyua (the brain eater) about the remains, Jarrod said his brother denied that they were human and said they were animal remains. After calling his father downstairs, the pair discovered the remains had been moved and Alexander Kinyua was washing out the metal tins.
When the police arrived they were able to locate the heads and hands in the house. They also interviewed Alexander Kinyua, who allegedly admitted that he had killed Agyei-Kodie by cutting him up with a knife and afterward, ingested his heart and portions of his brain.
H/t to Jonas Fester for making me aware of this.