JOPPATOWNE, Md. (AP) — The college student suspected of killing and eating parts of a man staying at his home ranted months ago about "mass human sacrifices" on Facebook in one of several details that emerged on Friday in the second gruesome case of alleged cannibalism in the U.S. in a week.

Authorities say Alex Kinyua, 21, admitted using a knife to kill and carve up Kujoe Bonsafo Agyei-Kodie, 37, before eating his heart and parts of his brain. The older man had been staying with Kinyua's family for about six weeks at their townhouse in the Baltimore suburb of Joppatowne.

Both the victim and his alleged killer had attended nearby Morgan State University, a historically black university in Baltimore. Kinyua had just finished his junior year, and Agyei-Kodie was a graduate student who last attended classes in 2008. Both men were also originally from Africa; Kinyua was from Kenya and Agyei-Kodie from Ghana.

Investigators haven't given a possible motive in the slaying. In a separate case on May 19, police said Kinyua beat a man with a baseball bat on Morgan State's campus, fracturing his skull and making him lose sight in one eye. Kinyua was free on $220,000 bail in that case.