Now that Carlos Cruz is sitting on Rikers Island, charged with paying $1,000 to have his cousin murder his ex-girlfriend in front of their son, the remorse is flowing. Cruz gave a jailhouse interview to the Daily News, "It wasn't supposed to happen like that. I was just trying to scare her." Cops say that Cruz held Chelsea Frazier by the hair, so his cousin could get good clean stationary shots at her torso as......