I'm holding off final thoughts till we can actually verify if James Somerton made an attempt or not.
I will say that based on my ethics, I don't believe Hbomberguy is responsible for James Somerton's death if this ends up being true if his sole purpose was to catalogue and present information, much in the same way that if the goal of KF is to catalogue and present information, that KF is also not responsible for actions of those who take their own lives. The blame would lie with individuals with Hbomber's audience/KF users in both instances, but in neither case does it represent the whole (some tard going too far here doesn't represent everyone, same with Hbomb's audience).
HOWEVER
That is my ethical framework that I am basing that judgement off of. If I was to adopt Hbomberguy's ethical framework, then he's 100% responsible for the actions of his audience and should forever be labelled as "the man who killed James Somerton". Especially considering he didn't exactly hold back any blows in his video and very much set up his video with the goal of "taking down" Somerton rather than educating him, or using the pressure of the public to help him change.
Take your pick Harry. Are you a hypocrite, responsible for the death of another content creator, or have you just realised your ethical framework is fucked and you need to change it. (Hint: pick the last one, it's the best one).