Trump Says US Has Terminated Likely ISIS Successor. The news comes days after ISIS leader Abu Bakr al-Baghdadi was killed in a U.S. raid. Trump took to Twitter to share that al-Baghdadi's supposed replacement had also been taken out. Just confirmed that Abu Bakr al-Baghdadi's number one replacement has been terminated by American troops. Most likely would have taken the top spot - Now he is also Dead! , Donald Trump, via Twitter. A State Department official later confirmed that ISIS spokesperson Abu al-Hassan al-Muhajir was killed in a strike Monday. A video of the raid that killed al-Baghdadi is expected to be released by the Pentagon at a later time