That was certainly fast. Police have arrested Bernard Bellamy, 20, of Oxon Hill, and charged him with first-degree murder in the death of Valicia Demery, 19, whose body was discovered early on Sunday on a jogging track behind Forestville Military Academy, the Post is reporting. Bellamy was taken into custody at West Virginia State University, where he is a sophomore. The suspected motive is painfully obvious: Demery was four months pregnant, and Bellamy was none too pleased. Interesting details from reporter Matt Zapotosky: The suspect’s father admits he had basically zero clue what was going on in his son’s life, and doesn’t seem willing or able to rule out that his son might have killed his on-again, off-again girlfriend.