It was kinda a clusterfuck actually. The walkthroughs and a firm hint by an NPC say to go above this woman and knock a statue down on her as she talks, but I couldn't figure out how to get to said statue. I restarted three times! So finally I decided to just cast frenzy and let the crowd kill her... but this accidentally got her husband killed, whereupon she resumed acting cheerful and happy because it's such a lovely day for a wedding. I finally got her, and then my companion zombified her as we fled the scene and she ended up as a pile of ash outside the Dark Brotherhood hideout. At least I got to loot her body that way, and all's well that ends well, right?
I also have a house in the Riften sewers. I'm not sure why I wanted a house there. There's a dead body on the doorstep that I can't remove, and it's all kinda grim and grimy. I'm not exactly raising my kids there, that's all I'm saying. They can stay in the house I inherited by killing an orc. (She asked me to kill her! It was a whole thing.)
I also have a house in the Riften sewers. I'm not sure why I wanted a house there. There's a dead body on the doorstep that I can't remove, and it's all kinda grim and grimy. I'm not exactly raising my kids there, that's all I'm saying. They can stay in the house I inherited by killing an orc. (She asked me to kill her! It was a whole thing.)