Uwe Barschel (1987)
Schleswig-Holstein's minister-president was found dead in a Geneva hotel bathtub amid a campaign-finance and spying scandal. He had resigned days earlier.
Officials concluded suicide, but questions persisted.
The case became a reference point for unresolved political deaths in Germany.
Aiwanger's death also puts a state leader's death at the center of a political succession, though no scandal is alleged here.
