By Rachel Treisman Dayton Webber, then 18, pictured at a baseball game in 2016. In the years before his arrest, he shared his experience playing sports — and turning pro in one of them — as a quadruple amputee. Kevin Sullivan/Digital First Media/Orange County Register via Getty Images hide caption A professional cornhole player who is a quadruple amputee has been arrested in connection with a fatal shooting. Dayton Webber, 27, is accused of killing a man in the front seat of his car during an argument on Sunday in his hometown of La Plata, Md.— about 30 miles south of Washington, D.C. — according to the Charles County Sheriff's Office. The sheriff's office said in a press release that passengers in the backseat saw Webber shoot Bradrick Michael Wells, also 27, before he pulled over and asked them "to help pull the victim out of the car." They refused and left, at which point Webber "fled with the victim still in the car." All of the passengers knew each other, authorities said.…