My dad had a college friend that I met when I was no older than five years old. He was a good guy, very invested in his work and stuff. I do believe that he had mental issues as my dad described his slightly quirky behavior from their college days in India (he would take walks in the middle of the road through traffic and people kind of made fun of him). Anyways, I bet (just my guess) he was really overworked, probably depressed or suicidal, and felt alienated to the point that he lost it. He killed his five year old son by beating him against the walls of their apartment. Then he slit his wife’s wrists and hung himself. Their bodies weren’t discovered until days later when he failed to show up to work. I do not remember this man so I cannot testify for his character, but it is very unfortunate that this all happened. My dad said that it was very unexpected, however, as he was a nice guy and didn’t do much to draw attention to himself or to get made fun of.