In my KH in CZ we had elderly woman. She was good friend of my mom, usually sitting next to her. We also spent time at assembly in Prague-Strahov in 1991. She had first suicide attempt by stepping in front of local single street train car, which catapulted her off the side, horrible crippling her. Couple months later, she destroyed all her personal items, cut her cloths, and killed her self at home.
I know a case when entire family drove south of Prague to the river, put rubber hose through window into the exhaust pipe and killed themselves. Man, woman, and two of their children. Several year later, different family in different KH did the same. Both cases were covered by national media.