A teen is arrested, accused of stabbing 17-year-old. Kamron Nelson is facing willful injury causing serious injury charges. He’s suspected in the stabbing of 16-year-old Tyrese Nickelson, of Waterloo East. Nickelson was found with stab wounds to his back and arm on July 7. He was treated at the hospital and is expected to be OK. Nelson posted bond and is being tried as an adult in the case.