MILAN — Heavy rainfall triggered a massive landslide early Saturday on the southern Italian resort island of Ischia that destroyed buildings and swept parked cars into the sea, leaving at least one person dead and up to 12 missing. The body of a woman was pulled from the mud, the Naples prefect Claudio Palomba, told a news conference. With raining continuing to fall, rescuers were working gingerly with small bulldozers to pick through some six to seven meters (yards) of mud and detritus in the search for possible victims.