Edmonton attack suspect entered U.S. through Mexico: officials

A man believed to be the suspect in an attack that injured five people in Edmonton over the weekend was detained days after arriving in the United States from Mexico, U.S. officials said. 
Abdullahi Hassan Sharif, who sources say is the same person as Abdulahi Hasan Sharif, the man charged with attempted murder after a knife and vehicle attack in Edmonton on Sept. 30, entered the United States at a pedestrian crossing near San Diego, Calif., in 2011, according to U.S. Customs and Borde