Exclusive: Pirate tells how five drowned

NAIROBI, Kenya (CNN) -- One of the pirates who held a Saudi-owned oil supertanker off the coast of Somalia before releasing it for ransom over the weekend told CNN how five in his group drowned in an operation gone wrong.A small aircraft drops a ransom payment during a flight over the Sirius Star on Friday.Pirates seized the Sirius on November 15. A $3.5 million ransom payment -- down from the