~snip~
This is the kind of news which makes me wish there was more reliable and affordable mental healthcare around the world, specially in developing countries, there people can be struggling more, both mentally and physically.
Perhaps there was a time when that man realize he had a problem, but did not have money to pay for help, so he did not get help but decided to commit this crime in order to continue to pursue his gambling habits.
When people talk about health, the first thing that comes to mind is physical health, vaccination, pills, exercise, but most of us only take a look at mental health when it is already too late, so do the governments around this planet.
The thing is that mental health is extremely difficult to diagnose, specially for a large number of people. There's no test that you could use to sense the current level of your "mental health", whereas with physical health you can simply step on a balance and you'll have a rough idea with BMI.
Also the same events in life affect people differently, so one person might be struggling, whereas another one would be absolutely fine with the same lives. So, it's hard to know when someone is having mental issues, plus many people never stop and ask for help.
And even when you do have people asking for help for mental health, then it is really hard to help them because the treatment might be so different to different people, and it usually is very costly to make effective changes as they might require long time, many people, changing lifestyles, etc.