Does praying for someone to get hurt or die make me an accessory to their demise?

What’s the legal status of a prayer?

Suppose for example, I went to church and prayed that some evil person (the dictator of your choice) die and ugly and painful death to make up for his misdeeds.

And then the evil person dies ugly fairly close to the time of my prayer.

Am I an accessory to the person’s death? Am I culpable? Did my wish lead to his death?