Country singer Chase Matthew’s bassist has been charged with child sex crimes after being arrested at a Kentucky festival. Carsen Richards, 22, was arrested Saturday and is accused of sexually abusing an autistic boy on two occasions in 2020 and 2022 when they were ages 12 and 14, LEX18 reported . Footage shared on TikTok showed Richards being surrounded by cops after he had performed at the BBQ & Barrels event in Owensboro, Kentucky. Carsen Richards, who performed as a bassist for country singer Chase Matthew, performing at the iHeartCountry Festival on May 2. Getty Images for iHeartRadio Cops waited until the Tennessee-born guitarist had left the stage before arresting him amid fears he could be armed. Richards has since been charged with sodomy and incest involving a person under 18 by a person three or more years or older, and faces up to 10 years in prison if convicted.…