An Avon man faces a more severe felony charge for allegedly leaving the scene of a December crash on U.S. Highway 6, in which prosecutors say he struck a man crossing the road who has since died. Tyler W. Walker, 31, was originally charged with leaving the scene of an accident resulting in serious bodily injury, a class 4 felony. Prosecutors filed an amended complaint against Walker on Friday, seeking to charge the crime as a class 3 felony after learning that the pedestrian, Andrew Dolan, 46, has since died from his injuries. According to an affidavit by Colorado State Patrol Sgt. Jessica Br...