I have a close friend who's a psychiatrist who's dealt a lot with suicidal people. He has described that there is a whole group of people who want to die, but

I have a close friend who's a psychiatrist who's dealt a lot with suicidal people. He has described that there is a whole group of people who want to die, but do not want to kill themselves. They often aren't (fully) aware of this nature of themselves. These people often are very attracted to risky behaviour, and are seen pushing boundaries in extreme sports - skydiving, motorcycling, etc. But, of course, that doesn't mean that everyone - or even a large number - in these sports are like this.