It's sad that someone died, and the person responsible doesn't have to rot in jail- HOWEVER- you can believe that the guilty person will feel bad everyday for the rest of their life, knowing that someone died as a result of them. How would you live with that thought? I know it would haunt me each and every day and I would require serious mental health support.
And, also: not to defend the guilty person, but he was guilty of
manslaughter.
Manslaughter is much, much different than MURDER, which is what a KILLER does. A manslaughter-er is not a killer IMO. Somewhat sensationalist title for the linked article.
edit: A manslaughter-er is not a killer IMO... I should say "A manslaughter-er is not
neccessarily a killer IMO", because I guess it is possible, but I'd hate to paint every manslaughter-er with the killer brush. It could have been a terrible accident.