My husband took his own life in April. There was an autopsy as well, as in almost all suicides.
I don't know your father-in-law's manner of death, but my husband's was very tragic and violent. I had to make the arrangements and there were members of my husband's family that wanted to view his body.
I wanted them to have that closure, but I was unsure what to do. I spoke to the kind lady at the medical examiner's office and she gave me her honest opinion of the body.
Then the funeral home, once they had my husband there, also told me what was possible.
In the end, no one was able to view him due to the condition after his violent death and then being at the medical examiner and having a full autopsy. By the time I made arrangements, it was already 3-4 days past when he had passed on. I sometimes cry about that, that I didn't get to see him, but it was a decision that had to be made fast and it's so incredibly painful.
So you know what, I don't know that I did the right thing in regards to viewing.
I understand that, horrifically, there are photos of my husband in the police report if I ever want to see his body, if I ever have that doubt and just have to see to make sure it's really him, you know.
In some ways, not knowing is worse than knowing because I imagine it to be so, so terrible and I sometimes wonder if it would have been better had I seen him.
I'm no help on this--I just feel so badly for you and am keeping you and your family in my thoughts.