In the UK it started with the Fabrice Muamba case, I think.
He was a footballer who died on the pitch and was revived some 78 min later and lived, albeit out of the game.
Liam Stacy said some offensive things about him and was jailed for 56 days.
Although I remember reading them at the time, it's tough to find the actual tweets now. This article, from the Guardian no less, goes some way to explaining the nature of them. (Remember it's the Guardian, so try and ignore the last couple of paragraphs)
https://www.theguardian.com/commentisfree/2012/apr/08/victoria-coren-liam-stacey-tweetsMy personal view at the time was that the jail sentence was ridiculous. It should not be illegal to be offensive.
The Unversity of Swansea had every right to kick him out, whether I agree with that or not.