CRIMINALLY RESPONSIBLE FOR THE SINKING OF A LUXURY YACHT OFF THE COAST OF SICILY. THEY ARE CONSIDERING MANSLAUGHTER CHARGES. THE YACHT CAPSIZED DURING A STORM MONDAY, KILLING SEVEN PEOPLE ON BOARD, INCLUDING THE YACHT'S OWNER, BUT 15 PEOPLE SURVIVED. INVESTIGATORS SAY THEY'RE NOW LOOKING AT THE SHIP'S CAPTAIN AND