Not a lot is clear at the moment and stuff may changed based on the reports, etc etc, so take everything with a grain of salt. What I think we know at the moment is this: A man drove a truck into the entrance of a store. 4 dead and 15 or so injured. A suspect has been arrested. He has confessed and the police, according to the paper I read, said they have strong evidence towards his guilt beyond that. The man is from Uzbekistan and has, apparently, stated sympathy towards IS. So yeah... Fucking shit. Enjoy the callous "I told you so" from Trump and those like him.