Authorities in New York are looking for Ibrahima Ragis, an immigrant from Guinea, Africa, who is wanted for the knifepoint sexual assault and robbery of three females in Queens, N.Y. Authorities say the first two females were robbed and sexually assaulted, and the third was robbed before a witness interrupted the attack, causing him to flee. Cops say Ragis dropped his knife and cell phone, allowing the authorities to identify him through DNA and phone records.