I feel for the family, but unfortunately there's nothing you can "buy" that can change someone's state of mind or being. Those who want to harm themselves and don't want help will reach their own demise on their terms. Some will even manipulate the feelings of those who love them in order to continue a damaging and deadly habit.
I wouldn't be surprised if Vox published an article titled "She couldn't get together $110k. Her son still died" or "Her son didn't want help. He died because of $110k". These kinds of articles are journalistic hack jobs that don't inform or help the issue of addiction and mental health.