CAn someone give me a code that will kill my player object and all of its children

CAn someone give me a code that will kill my player object and all of its children. I am new to unity and have no idea how to do this please help thanks.

 

Destroy is what you are looking for.

https://docs.unity3d.com/ScriptReference/Object.Destroy.html

When you destroy an object with children, the children go away too.

 

plenty of tutorials in the learn section, they'll walk you through how to destroy things, for example:

http://unity3d.com/learn/tutorials/projects/space-shooter-tutorial