These major traumatic losses were not very long ago. What is taking place with him right now is that he is decending into the PTSD. He is talking about suicide because he wants to end the pain he is feeling, I am sure it's overwhelming. He is expressing a lot of anger towards you, but you are just there for him to vent the anger out towards. He is not seeking help because he most likely feels that no one can help him with this. He probably cannot even articulate all the emotional overwhelm he is feeling, at this stage most just can't put it into words.

He has to get help, he could snap and end up going into a rage, even a white out rage that he can't stop. You don't deserve to be on the receiving end of that either.

He has to release the anger, but he needs to do it in the right setting with a professional, not someone like you who can end up getting hurt.

You are seriously walking on eggshells with this man who may blow up at anything you say wrong even though you are trying to help him. Him asking what to do is saying he really is lost in the stage of PTSD he is in, and he is probably going to get worse, even feed into it unknowling simply because he is so raw right now and has no idea "why" he is struggling so much.

It just has been so recent, it was a lot all at once so it is no surprise that he is having such a hard time and is overwhelmed, so much so that he is talking about suicide because he wants to end the agonizing stage he is in right now.

It is important that you tell him that his suicidal impuses can come in waves, but he needs to pay attention because they can come in like a wave but they do receed and go away. He needs to know that this is because he is overwhelmed right now and in time this part of the PTSD will ease up. When you talk to him about getting help, you need to impress on him that someone who specializes in PTSD will give him ways that he can help himself so he can slowly learn what is happening so he doesn't feed into it and make it worse, but instead learns what is happening and how he can help himself better.

He has to understand he has an injury, just as if he broke his leg and needed to see a doctor to fix it, so does he need a PTSD therapist to help him heal from this too.