Who killed her? Her brother is accused of slaying her.
Why did he kill her? If it is proven that he did in fact kill her, it would be to see through the Muslim custom of doing away with a female who has brought dishonor to the household. It’s known as "honor killing."
What brought you here?:
Why does the Qur'an treat women like second class citizens. Was this the way Muhammad treated the women he knew? Did he rape and kill female captives?