Robert Dolan had stored on his cellphone hundreds of images of partially naked or naked young boys taken at a local YMCA, where he was spotted in a boys locker room last week. A two-year YMCA member, Dolan, 72, now faces three felony charges, including two charges of sexual exploitation of a child, class three and six felonies, and one count of invasion of privacy for sexual gratification, a class six felony.