You're blaming Cofnas, for Arday killing himself. Cofnas didn't make Arday plagiarise. He didn't make Arday lie. That was Ardays choice entirely. Same as it was when he killed himself.
It's not a simple case of one person is to blame for this. It is multi-faceted and complex, but I know trolls don't do nuance and complexity. I mainly hold the media responsible for the relentless pile on - it was front page news of the Times for 4 weeks. Nearly 40 articles before his death. There's no way of knowing if he read them all, but he would surely have been aware of the intense media interest in a story which had me puzzling at the time "why is this such big news, still, weeks later?"
Yes, Cofnas was the trigger, and yes he was motivated by racism which is not a good look, but he was perfectly entitled to uncover the fraud and report it, so yes Arday is also responsible for the situation he found himself in because he should not have lied and plagiarised. And ultimately Cambridge University is responsible for not doing their due diligence into Arday's CV and outlandish claims. The man was clearly a fantasist and out of his depth and never should have been appointed in the first place. DEI is therefore also to blame, as a construct which rewards people not on merit but on their protected characteristics.
All that said, and taking into account basic humanity and decency I would expect at the very least that all those directly involved in the process of either bigging him up or bringing him down to express some regret and offer condolences to the deceased and his family, who really did not deserve this outcome, nor the weeks of intense pressure and scrutiny that led to the final outcome which extended even beyond the point of his resignation. There was no let up then, and it appears no let up now. It's as if they (the media) want to hang his corpse from a lamppost for the mob to keep on bashing. PS: this is the self-same media that certain individuals (naming no names) believe is complicit in covering for the establishment, that never report the truth and protecting the high ups.