William Benditt and Sharon Jeffkin were last seen when they rented a 19-foot boat from Glades Haven Marina, near Everglades City. (U.S. Coast Guard photo)ST. PETERSBURG, Fla.— The Coast Guard and partner agencies are searching for two boaters aboard a 19-foot center console boat near Everglades City, Florida, Monday. Missing are William Benditt, 60, and Sharon Jeffkin, 53, from Lansdowne, Pennsylvania. At...