A Philadelphia man now charged with murder has been accused of being responsible for the horrific death of his girlfriend's toddler daughter, Us Weekly has learned. The tragic incident unfolded on December 8. An emergency was reported inside a home in the city's Fairmount neighborhood, and when police arrived, they found an unresponsive Key'Monnie Bean-Walls, 2, on the floor of the basement. According to prosecutors, she was hoisted onto her bed, and officers tried reviving Bean-Walls using CPR but couldn't.