His heart was enlarged, weak and could have given out at any time.

There is absolutely no indication that this is anything but an accident.

Primarily, he just had a bad heart.

It had a significant impact on our ability to communicate and function.

While liver disease appears in his history, it does not appear that it has anything to do with his cause of death.

We don't know how much he ingested or when. There are a lot of 'what ifs' to be factored in.