How did Israel and US kill Khamenei in his own compound in Iran?

Israel and the US launched a rare airstrike during the day on Iran to kill Supreme Leader Ali Khamenei on Saturday. The strike coincided with Khamenei's meeting with his top aides at a high-security compound in Tehran. "Thirty bombs were dropped on the complex. Ali Khamenei was underground, but probably not in his own bunker," Israeli journalist Amit Segal said.