Clearly this is a version of Clark Kent where the Kents died when Clark was a teen, likely in some way that angered Clark who sought vengeance thinking it equaled justice.
Considering this Clark is actually at least 20 years older that 'our' Clark - although his ID will have him born in 1966 - it's unlikely he was raised by Martha and Jonathon at all. The 'real' Clark will never be found.
P.S. I'd like to hope that (as the poster above mentioned) the smile for Lois means that this Clark can feel emotions, can feel love, and can possibly be redeemed. Can his love for Lois show him the way to, if not repent, at least swear to sin no more?
Possible - or he simply appreciates Lois's fighting spirit.
