Destroy the Child of a Parent actor when its destroyed

Im trying to create a basic ai, the enemies have ai to run towards the player but just bump into you, to attack they have kill boxes attached to me, which follow them around, so when the player gets close enough they take damage.
When you kill the enemy their actor is destroyed, but the kill box is a child and isn’t destroyed so stays behind.
How can I get an actor being destroyed also destroy all their children?

Are you not attaching your “kill boxes” (which I assume are some kind of trigger volume, such as a Sphere Trigger) as components on your enemy actors?

If not, try that. Because components belonging to an actor automatically get destroyed along with their parent actor. Plus, the attachment (sticking the volume onto the actor) is also automatic, that way.