A European Mystery: Ou Est La Jaconde?

After your shot was fired, you only hear one other gun, which is to the left of you.
“Who are you?” screams the man to your left. His gun stops firing.
“I’m with the police. Are you an officer as well?” you reply.
“Yes I am safe and will not hurt you,” the officer responded.
You both slowly emerge from your makeshift shields. You are relieved to see that the other man is an officer too. To the right, you see a man with a painting in his hand, lying on the ground. As you approached him, he did not flinch. He did not tremble. You knew that he was dead. In his hand, lay a gun, in the other, a map. You searched the pockets of his hoodie. You find his cellphone. You call the station and inform them on what has happened.

The French Police Department take care of the situation from here, and give you most of the credit for a job well done. You return to your hotel after a long two days. You take the escalator up to your room, and fall back onto your bed once you get inside. You turn on the TV. You see yourself on the screen, and a caption below. It reads: “Un héros américain sauve la Jaconde!” You can’t understand most of it, except for the word hero. Your phone rings, and you pick up the call; it’s from the police. They inform you that they have found the Mona Lisa, and couldn’t have done it without you. You thank them, and end the call with excitement. How do you reward yourself after this long trip?