The racoon became a media star in Germany on Saturday, after it was spotted near a Christmas market in what witnesses described as a "drunken" state.
The animal wandered slowly across tram tracks in the central city of Erfurt, seemingly paying little heed to onlookers taking photographs, before settling down to sleep in a doorway.
A security guard watched over the racoon until it was taken away in a cage by the fire brigade. Local media at first reported that the racoon was being taken to Erfurt's animal shelter.
But after the shelter posted on its Facebook page that this wasn't the case, a city spokesman told local broadcaster MDR Thuringia that authorities had no choice but to shoot the racoon, because it would have been illegal to set it free.
He added that a vet had identified signs of canine distemper, a disease affecting a variety of animals which can be fatal. Under German law racoons are categorised invasive pests which may be hunted.