Well said, Brian. Although it is a disproportionate cause of death in young people, it is actually post retirement-age males who are generally most at risk. If you even think for a second someone is not quite acting themselves, say something nice to them. If you are really worried, do your best to address the issue, as this case goes to show, when older fellas go down this path they don't do it by half measures (suicide attempts are much higher amongst women, suicide completions are much higher amongst males, particularly older ones).