evidence: The world’s most wanted terrorist, the Islamic State militant group's leader Abu Bakr al-Baghdadi, was killed Saturday in a U.S.-led raid in northwestern Syria, President Donald Trump announced Sunday. [...] "Last night, the United States brought the world's No. 1 terrorist leader to justice," Trump said. "Abu Bakr al-Baghdadi is dead." [...] The Kurdish-led Syrian Democratic Forces (SDF) — a key ally in the fight against the extremist group who accused Trump of abandoning them to the Turkish advance — claimed a role early Sunday in the operation in which al-Baghdadi was killed.