July 6, 2005 -- A racist ex-con confessed that he fatally stabbed a beloved mother of two at a White Plains mall because he wanted "to kill a white person." "She was not innocent. She was white," convicted rapist Phillip Grant confessed in a chilling videotaped statement to cops that was played in White Plains City Court yesterday — the same day victim Concetta Russo Carriero was laid to rest. The 43-year-old homeless man told cops he had never laid eyes on Russo Carriero, 56, before he stabbed her in the chest twice last Wednesday on the seventh level of...