The killing of Iran’s Supreme Leader Ayatollah Ali Khamenei in a joint U.S.-Israeli military operation is likely to cast a shadow over efforts to revive diplomacy between Washington and Pyongyang, analysts said Monday, as Pyongyang's trust in U.S. President Donald Trump appears to be eroding amid heightened security concerns. The attack, which came amid stalled nuclear talks between Washington and Tehran, is expected to reinforce North Korean leader Kim Jong-un's long-held belief that nuclear weapons are the ultimate guarantee of his regime's survival. After the United States and Israel launched airstrikes on Iran on Saturday (local time), Trump wrote on social media hours later that the Iranian leader had been killed in the operation, declaring, "Khamenei, one of the most evil people in history, is dead." The Iranian government later confirmed his death. The latest episode, which came two months after the U.S. government's capture of Venezuelan President Nicolas Maduro in January, appears to have unsettled Kim. This is likely to lower the chances of a possible Trump-Kim meeting, which