BALTIMORE — The second-highest leader of the Episcopal Diocese of Maryland will be charged with vehicular manslaughter, drunken driving and other counts stemming from a hit-and-run crash that killed a bicyclist on a sunny Saturday afternoon, Baltimore’s top prosecutor said Friday. An arrest warrant also will be issued for Bishop Suffragan Heather Cook, 58, whose blood-alcohol level tested at .22 after the wreck, nearly triple Maryland’s legal limit for driving, Baltimore State’s Attorney Marilyn Mosby said at a news conference. Cook’s attorney, David Irwin, did not immediately return a message seeking comment Friday. Cook was driving a car that hit Tom Palermo, a 41-year-old father of two, on Dec.