Question: In 2002, Mariah Carey reworked a song by which Harlem rapper, formerly known as Killa Cam? 
Sentence (from "Cam'ron"): Cameron Ezike Giles (born February 4, 1976), better known by his stage name Cam'ron (formerly Killa Cam), is an American rapper, actor and entrepreneur from Harlem, New York.
Relevant evidence: Yes