My late aunt shot her husband back when I was little. Didn't kill him, but he lost an eye, and walked funny afterward. She married him as a rebellious teenager wanting to leave home, and quickly found herself with a baby, pregnant again, and with a husband who was a mean drunk who cheated on her and then slapped her around for complaining. One night, she'd had it after the latest fight ended with him saying, "What are you gonna do about it?" She waited until he fell asleep and shot him. She spent a year in prison because she was a minor, and another aunt raised the second baby. Her husband was waiting for her when she got out - to whisk her off on a second honeymoon! Neither was none too bright.
ETA: I don't whether it's more funny or pathetic that she only got a year because she was a pregnant minor and it was her first offense. This was over 50 years ago.