Farm,
Please don't be looking for the "stages" while he's like this. They can bounce back and forth through most of them in a matter of hours. The stages and the timelines that you've read are just something to think about and each person's crisis is different from the next. People tend to react differently when they are confronted with the things that life tosses at them.

Sit quietly, listen closely and validate his thoughts/feelings. Patience will be the most important key in this situation.


Sit quietly, the answers will reveal themselves when you least expect them to.
The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.