RAI 3 just did a report on the evening news of Rebellini's tragic end, with footage of his bike still at the scene that was totally broken in half and utterly destroyed, nay mangled. which indicates that he was literally run over at high speed. The driver kept going! In a cruel coincidence it was Davide's brother that first discovered him dead.
Many motorists just don't care about cyclists and rather despise them.
PS. Over the years, in every interview, he really did seem like a kind soul, soft spoken to the point of melancholic, never angry, even during his dark moment. And I never heard a collegaue speak badly of him.