First and foremost, mob justice is rarely justice. Second, as the other poster noted, this has been a problematic intersection for over a decade. This guy was just the unlucky one to have a bunch of people die because of his bad judgement. Third, when is the last time someone was deported over a negligence conviction of any kind?
I get that the families of these victims never want to see him again, but it’s a big country. Their desires can be met without deporting the guy.
I’m not against deporting criminals, but I believe they should present a danger to society. I’m pretty sure this guy is never going to do something like this again, if for no other reason than him not being allowed to drive professionally (and if he is still allowed to drive professionally, that’s another, different failure of the system).