Has anybody lost a loved one to asbestos related cancer?

For as long as I can remember, my dad always said he wanted a post mortem after his passing as he knew he had been exposed 

Well, turns out he was right (he usually was)!

He passed just over 2 weeks ago after being told they could do no more for him. 7 weeks to the day from leaving hospital where he spent 5 weeks being treated for a fungal infection in his lung that he never even had.

The coroner said today they have opened an inquest today as the post mortem showed cancer only caused by asbestos. 

Dad always said he wanted the post mortem so we could claim compensation on his behalf. 

Where do we go now? How do we fight for this while grieving? I guess it's the only thing we can do for dad now - try to fulfill his wishes.

I'm just so confused by if all, my head is in a muddle and dont know where to turn.