Please accept my sincere condolences for your loss. My son served three deployments in war zones, one in Afghanistan during the invasion, and during the invasion of Iraq and once during the occupation of Iraq. He is not the same young man that left, but at least he came home.
I cannot blame the VA or the other doctors that your SIL got his meds from for not monitoring his intake, how could they do it? If your state has a drug monitoring program, perhaps they could have used it, but my state only recently joined that program. Sadly, I can only give responsibility to your dear SIL, he took the drugs. I don't know how much pain he was in, physical or mental, I don't think anyone does. I do not blame him, because I didn't know him.
I was very severely depressed at one time and considered suicide, but thank goodness I have a really big family, I could not find a day to do the deed that did not fall near someone's birthday or anniversary, etc. By the time one came around the suicidal feelings had stopped. Shame on him for doing it at all, but shame on him for doing it the day after her birthday, and letting her find him in their home. I have known many family members that were related to suicides and their grief is always horrible.
Your daughter can join the folks doing the article or not, depending on how she feels. Please pass on to her my wishes for healing for her.
Take care, Annette