SPANISH police arrested a group of suspected cocaine traffickers on a boat from South America in the middle of the Atlantic after one of them shot dead a fellow smuggler and took the rest hostage, the interior ministry said. It said the case occurred in November but was kept under judicial secrecy until an investigation was completed. In an apparent falling-out among the boat's crew, a Serbian national seized control of the vessel Sea Paradise shot one of the other smugglers, threw his body overboard and took the eight other crew members hostage, a ministry statement said. Tipped off about…