(Portland, OR)  --  Portland police are looking for a suspect after a 16-year-old boy was stabbed inside the Lloyd Center mall.  Investigators say the teen was found yesterday afternoon near Nordstrom, lying on the floor and clutching his lower back.  The victim was treated at a hospital and released.  Police say the suspect is described as an African American man in his 20s, wearing a black jacket, red T-shirt, black pants, and white shoes.