"He admitted to killing our missing person, Mr. Kodie, and cutting him up with a knife, " Bane said.

CNN: STORY HIGHLIGHTS

His roommate, Kujoe Bonsafo Agyei-Kodie, had left his Joppatowne home six days earlier for an apparent early morning jog.

CNN: STORY HIGHLIGHTS

"He admitted to killing our missing person, Mr. Kodie, and cutting him up with a knife, " Harford County Sheriff Jesse Bane told reporters Thursday.

CNN: STORY HIGHLIGHTS