Ugh... CK3 is so frustrating.
I'm trying to carve out a Buddhist empire in India. Have it rolling, then murders start happening around the palace. After a bunch of folks dying, turns out, my Son and Heir, has killed a bunch of people, and eventually murders my character. He also proceeds to get caught. So EVERYONE knows, and is pissed. Basically civil war on take over, game over. Didn't make a ton of sense, largely because I had +100 with him, and he didn't have any obvious traits that suggested it. I also repeatedly sought to find secrets in my capital, and it didn't turn up. Even with a pretty high spymaster.