Sorry for your loss of a loved one! I too have lost a loved one as well to suicide... She was a cousin of mine and only 18.. My gma asked the priest, if she was in hell and the priest said I don't know.. Luckily I chimed in and told them what I knew from my afterlife research on books and scientific afterlife studies on the internet!! I also, don't believe in hell.. I just believe hell is just a big crappy illusion some people have to go through... Like the tibetan book of the dead says, it's all a part of your mind playing the tricks on you..
Also, in my gut I had a feeling she went to a special recovery hospital in the afterlife.. As, what I have read is where most suicides go too.. Yes, I know some suicides go to a grey foggy eerie place as well... But those suicides are mainly people who do it for selfish reasons like to get back at someone for causing them pain.. Or people who go bankrupt from gambling and commit suicide..
So, basically if he was suffering depression for a long time... He will go to a place where he will be loved and taken care of!!
My mom had a dream about my cousin who commited suicide and in the dream she was a lil girl and she went to her daddy in the dream.. He died of cancer awhile ago... I bet ya that dream was showing my mom that she was in good hands!!!
So, I will pray for your husband's grandson!!
I am sure he is in a better place though!