Robot Assisted Suicide

So crazy story, I was reading Fark. com, my personal favorite news website and an article came up about an Australian man who committed suicide. Now when I say committed suicide, this guy was fully committed and succeeded. His family was worried about him because he was 81 and they wanted to put him in an assisted living home, but instead the man decided to build a robot and kill himself. His suicide note explained that after the "threat" to take him to a home, he researched for hours online looking for a way to kill himself. Now the thing that got me was he was killed by 4 gunshots which obviously means he had a gun to begin with. What was he doing researching how to off himself when he had the necessary tools already? He was obviously crazy and needed to be put in a home, but no he builds a highly mechanized robot...to shoot him four (4) times in the head in his driveway...so he could be found dead by next door neighbors. I don't know this guy's background or what he did for a job before retirement, but why couldn't he use his technical abilities for good instead of killing himself? If I could build or own a robot it certainly wouldn't be used to kill myself, (same with a chimp or monkey, which would also be fun to own), I would have it go get things for me or take over the world or something. What a waste of resources, that's like having a transformer car (bumble bee) and throwing yourself in front of it before enjoying it. I don't get it. Oh crazy people, you bring such awkward and unheard of situations to light in the sane world.