The God's Spark (Side Quest)
One of the three miniquests attached to the to Shield or Blade side quest. Use Senu to identify the spark-carrying jackalman in the Funeral Parlor location.
While sniping is (always) a viable option, you will need to confirm your kill, so try to drop him someplace relatively secluded. Good spots are the outer ledge where he stands watch over the street below, and the inner balcony where he meditates.
Confirm the kill to pocket some God-Essence and complete the mission.