How should we understand the statement of the angels "Wilt Thou place therein one who will make mischief therein and shed blood?" when Allah created Hz. Adam?

How should we understand the statement of the angels "Wilt Thou place therein one who will make mischief therein and shed blood?" when Allah created Hz. Adam? I know that jinn were created before us. Was what the angels meant jinn or another human community?

Dear Brother / Sister,

When Allah Almighty allowed the angels to ask questions during consultation, they asked, “Wilt Thou place therein one who will make mischief therein and shed blood?”  This question by angels must not be thought in the form of criticizing Allah – God forbid. For, angels have no ability to object to the deeds of Allah Almighty. They are innocent beings. They do not and cannot commit sins. Therefore, their innocence prevents such an objection.

Then, what is the wisdom behind the angels’ asking that question?

The angels had some knowledge about what they witnessed before. As a matter of fact, the jinn that lived on earth before caused mischief on earth, shed blood and inflicted cruelty. The angels knew about it. They feared that humans would disobey Allah and cause mischief on earth; therefore, they asked such a question. The angels knew about it because Allah informed them or because they saw in in Lawh al-Mahfuz (the Preserved Tablet) or deduced it from the fact that man would be given the power of fury and lust.

The angels knew that humans would shed blood and cause mischief acting upon the community of jinn; there was no human community before Hz. Adam.

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