Not sure if this is too recent, but the guy who attacked the Finsbury Park Mosque back in June 2017, Darren Osborne, has now declared in court that he originally hired the van to murder a Labour politician in Rochdale, before changing his plans to target the leader of the Labour Party, Jeremy Corbyn, who he believed would be at the annual Al Quds march in London- also saying that it "would have been even better", "like winning the lottery," if London Mayor Sadiq Khan had been present. But after "road blocks" in central London "thwarted their plans", he traveled to the Finsbury Park area, because "it was Jeremy Corbyn's constituency", where he carried out his actual attack.
So then, what if Osbourne had broken through the plastic bollards cordoning off the route, and followed through with his original plan to attack the 2017 Al Quds March- or, alternatively, waited for the next public event in London which Corbyn was scheduled to attend, the #NotOneDayMore March on July 1st? In either scenario, how much higher could the casualties of his terrorist van attack have potentially been, and what sort of public reaction would there have been in the aftermath of either attack?