A 14-year-old Portal boy was killed Saturday afternoon in a four-wheeler accident on Harold Howell Road. A memorial event was held Sunday for Matthew Trenton "Trent" Graham, with a balloon release at Portal Middle High School. According to Georgia State Patrol Post 45 reports, Graham was driving the four-wheeler, with two other 14-year-old boys as passengers, on Harold Howell Road around 3 p.m. Saturday when he entered a curve in the roadway and lost control of the 2012 Polaris Ranger.