Speculation is always dangerous, many if not all ‘lone wolves’ have turned out to be ‘loners’ with consequent mental health issues, often made worse by their worship a the alter of drugs and drink not religion. Some based overseas in their once ‘safe’ hideaways rejoice at the killings and maiming, and claim the perpetrator as one of their own, I have real doubts that the loners had any real basis for their misguided actions.
To assign, race, religion or anything else except a life of as a failed criminal to the one in the Paris attack would be wrong. I do not speculate about the London attack though I await with interest news of their background.
I hope that the car was not hijacked ‘with prejudice’ to the owner.
If there was any good news, my fears about a hijacking were unfounded so at least one or more casualty did not happen.