LIMA — The wheelman in a slaying last summer pleaded guilty Monday to involuntary manslaughter.As part of the deal, Xavier Arrick will receive no more than three years in prison when he is sentenced Sept. 23, following a background check.Arrick, 19, was one of five teenagers charged in the Aug. 30 slaying of Eric Armstead last summer at a house at 620 Madison Ave. Armstead was sitting on a porch when he was hit by a shot. Arrick is the final defendant to be sentenced in the case in adult court. The shooter, Dederic Matthew, who was 14 at the time, was sentenced to 13 years in prison last month. The shooting occurred out of an ongoing feud that began a few days earlier when the teens were in two different groups that were throwing verbal insults back and fourth at the Allen County Fair. That spun into a fight at Wal-Mart on Harding Highway. But that fight didn't end the dispute. Codefendant Devontae Upshaw got into a fight with Armstead at school. Later that day, a group of teens showed up to Armstead's home to fight but were chased away by Armstead's uncle who reportedly had a gun.The group called Matthews, who had access to a gun. They picked up Matthews, he got a gun and they went back to Madison Avenue where Matthews left the car with Upshaw and fired at Armstead on the porch from a long distance with a handgun. The shot struck Armstead in the head.You can comment on this story at www.limaohio.com.