Pretty much everyone I have seen speaking about JD have had nothing but positive things to say about him and what a nice guy he was. One of his co-stars even commented on an Independent article to say when he worked with him on one of the Pirates movies he was always punctual and unlike a lot of other stars, made a lot of time for the rest of the cast (he was genuine, I checked).
I'm not going to judge him on some potty mouthed texts that he probably sent in anger and whilst under the influence, and I do believe he has a dark sense of humour and way of expressing himself to those close. Personally, I don't think it is fair to judge a persons whole character on private words spoken at what I would imagine was one of the lowest points in his life. I will add that the same goes for those texts between AH and Josh, they could also be interpreted as a dark sense of humour between friends.
The fact so many people, including several ex partners have spoken up in his defence speaks volumes to me.
I have no idea what the verdict will be, but hope they can both move on afterwards.