No… just no…

I think his confidants did. Because the Emperor didn't wanna believe he died and was very sick up to the point of taking his own life. So they would search for him to try appease him. But the Emperor doesn't trust those posters. You know how impatient and stubborn he can be. So he secretly hired a private Detective, while he goes out searching for him too, every single day. When he took some problematic stuff by himself (such as fighting Bandits).