The United States is investigating the crash of a private jet in Russia that is believed to have carried Wagner mercenary chief Yevgeny Prigozhin. U.S. officials have said that it is likely a surface-to-air missile originating from inside Russia shot down the plane. However, this theory is still preliminary and under review. The Wall Street Journal has reported a different theory, suggesting that a bomb or sabotage caused the crash. There are often competing intelligence views in the U.S. government after major events like this. The crash occurred two months after Prigozhin and his Wagner mercenaries staged a mutiny. U.S. President Joe Biden stated that he was not surprised by reports of Prigozhin's death, saying that not much happens in Russia without President Vladimir Putin's involvement. Putin expressed his condolences to the families of those who died in the crash and emphasized the need to await the outcome of the official investigation. The Embraer executive jet model that crashed had only one previous accident, which was unrelated to mechanical failure. However, the cause of the crash is still unknown and under investigation.