I think there is an element(though not the entire story) of how men in particular are expected to bottle everything up, and just take shit and put up with it. Whether its toxic masculinity pushed by the media, increased competition for jobs and resources due to immigration/ industrialisation/ computerisation, industries going offshore, people are under relatively more stress than in the past. Add to that high rate of divorce(80% initiated by women), custody/alimony which usually favours women it can get even worse.
When a guy bottles this shit up continually and when he’s told to just suck it up and don’t complain its not surprising that if(when) he snaps something bad is going to happen. It could be suicide or it could be some other violent outward expression to various degrees of seriousness.
Suicide, everyone afterwards says its a tragedy, why didn’t people do something to help the guy before it came to this, but nothing ever changes. Rinse repeat.
Violent inappropriate behaviour, many times the guys pleas for help have fallen on deaf ears.
Sometimes its due to acute mental health episodes. Even family members or healthcare professionals haven’t been willing or able to help(beds in mental hospital wards all full).
Then sometimes a guy is just a plain evil cunt, and it wouldn’t matter what you do, he’s going to do some seriously bad shit, to innocent people who haven’t done him any wrong.
I’m willing to accept rates per capita haven’t increased. But because populations have increased you hear about this shit going on more times than in the past.