Duke is being held up as an example of bad behavior and a toxic culture (which exists at every major institution to some degree), but physician suicide transcends any single training institution. When I was in med school, there was a psych fellow who committed suicide. Internally, the residents were supported (counseling, meetings, time off, etc) but other than those of us who were on the rotation at the time, no one ever heard a word about it happening. No press, no public acknowledgement. It was a former resident who had stayed on, someone who was well-known, respected, and liked. Even now when I bring it up, former classmates tell me that they had no idea that had happened. This kind of behavior is one of those dark sides of our medical culture that seems to make people really uncomfortable.
There is no quick or easy solution to fixing our broken system, but as individuals please be aware and empathetic if you have any concerns. So often, there are no overt indications of what someone else is going through.
If anyone who is reading this is depressed or considering suicide as a way out, please talk to someone about how you are feeling. Life sucks sometimes and it is not bad or wrong to feel that way, it is just a sign that you are in a particularly bad state of mind and/or situation. There are people who love you and will help you. Getting help can be done discreetly and in a way that will not ruin your career. It's not a sign of weakness.
Sorry. I will get off of my soapbox now.
*Internet rant complete*