Also, another startling stat: 60% of all gun deaths are suicides.
In England there was a particular problem with a particular pill being used to suicide by overdose. The pill manufacturer switched from selling it by the bottle to selling it in those little individually sealed sheets that are a PITA to open. Suicide rate immediately dropped. Apparently a great many suicides are impulsive and if given a little more time to think about it they will back out.