The beautiful daughter of two NYU professors was killed inside her mother's university apartment - and left to decompose behind the locked door of her bedroom for several days, police sources said. Cops were searching for Boitumelo McCallum's "jealous" boyfriend, according to police sources who described him as the prime suspect in the grisly murder of the intelligent 20-year-old student. -snip- "Everyone is calling, asking for information about this young woman - except her boyfriend. The sense is that he's not calling because he knows what happened," a source said.