I wouldn’t say typical, but this story goes to show that even people who were at one time very stable and respectable are susceptible to decline and decompensation.
There is no line between the sane and insane, the mentally well or mentally ill. Look at how fragile people are. This is less of an indictment of boomers specifically and more an indictment against a society that would give such fragile creatures weapons for for a warzone to just have and carry around like whatever. God we fucking suck.