According to this
BBC article [bbc.co.uk], a man (in the loosest sense of the word) was jailed for 18 weeks for 4 cases of trolling where the subject of his twisted posts were teenagers who had recently died.
I know how harmful this is due to losing my closest friend to suicide 5 years ago and hearing unsubstantiated garbage about him, his family were having a hard enough time as it was.
Got what he deserved, I hope the people in the jail he is sent to get to know what he has done.