This made the news in France, the driver and the two
passengers were arrested and the homeless guy who's being
dragged is suing them.

french source:

[link to www.cnews.fr (secure)]


EDIT: unfortunately he was unable to pursue his lawsuit as he
died a month later. There does not appear to be any
connection between this attack and his death. (thanks to
u/paperfett for the source)

Source: [link to www.public.fr (secure)]