United States v. Dawn, 685 F.3d 790 (8th Cir. Jun. 28, 2012) (Arkansas conviction of second-degree sexual assault, in violation of Ark.Code Ann. 5"14"125(a) (2002), is categorically a crime of violence for purposes of the Armed Career Criminals Act, since the elements of the statute necessarily involve either a use of force or substantial risk that force will be used).