Who killed Uthman, Aisha, and Abdullah ibn Abi Bakr?

The Commander of the Faithful, Uthman ibn Affan, may Allah be pleased with him, was killed by a group of ignorant riffraff who came from Egypt and other places. They besieged him for twenty-two days. Despite Uthman's prohibition of fighting, they stormed his house. A man struck him on his forehead with a palm frond, and another with his sword on his chest, then they took turns striking him with their swords. It is said that a man from the tribe of Tujib plunged his sword into his stomach, and his wife, Na'ila bint al-Farafisa, grabbed the sword, severing her fingers.

It was also said that the one who killed him was a man named Himar. And it was said that Kinanah ibn Bishr struck his forehead with an iron pillar, and Sudan al-Muradi struck him and killed him, and Amr ibn al-Hamiq stabbed him nine times. Uthman opened the door and placed the Mushaf (copy of the Quran) before him. A man entered and said, "Between me and you is the Book of Allah," so he left. Then another entered and aimed a sword at him, cutting off his hand. Then the Black Death (a man named al-Mawt al-Aswad) entered and strangled him. He was killed at the time of the Asr prayer, and his blood flowed onto the Mushaf over the verse: ﴿فَسَيَكْفِيكَهُمُ اللَّهُ وَهُوَ السَّمِيعُ الْعَلِيمُ﴾ (So Allah will suffice you against them, and He is the All-Hearing, the All-Knowing).

As for Aisha, may Allah be pleased with her, she was not killed; rather, she passed away in the year fifty-eight and was buried in al-Baqi'.

Regarding Abdullah ibn Abi Bakr, he embraced Islam early on. He was wounded by an arrow on the Day of Ta'if and remained ill because of it. Then the wound recurred, and he passed away in Shawwal in the year eleven.