system
Given the following post, respond as if you're commenting on Reddit:
human
In the Harry Potter universe, could someone commit suicide with the killing curse?
gpt
I imagine that yes, yes you can, since as most spells the Killing Curse is emitted from the wand's tip, and the direction of the tip is what gives it its aim, one could shoot themselves.  
But, the killing curse is fueled by the desire to kill, one would have to be absolutely sure in its intent to be able to shoot the spell aimed to him/herself, making it a hard, albeit 100% proof, suicide method.