Now therefore, behold, the LORD hath put a lying spirit in the mouth of these thy prophets, and the LORD hath spoken evil against thee. 2 Chronicles 18:22
How did God kill the disobedient prophet in 1 Kings 13?
By sending a lion to kill him
The man of God ... was disobedient unto the word of the LORD:
therefore the LORD hath delivered him unto the lion, which hath torn him,
and slain him, according to the word of the LORD. 1 Kings 13:26