system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] could a killing curse destroy a horcrux?
gpt
Yes. It did. The fragment of Voldemort's soul that was in Harry Potter was destroyed by Voldemort's Killing Curse.

It makes sense, since the function of the Killing Curse is to remove the target's soul from their body, and a Horcrux is part of a soul.