How old is she and what did your H do in terms of addressing this awful comment? I get you're the disciplinarian but this really has to come from him and needs to be shut down now. SD saying things like this is unacceptable and should never be tolerated.

She has given you the gift of honesty, a very rare gift in Stephell.  Take her blessing and run away, live happily ever after without them.

I agree with Simpre! How did your DH address this?

Spawn posted on Twitter she wished the Purge was real so she could kill me. We reported it to Twitter and the local police. This was back in the day, not like now if you report something like that they take it seriously and do something.

The kiddo is five. I doubt she seriously desires to see you dead in the middle f the street. 

If she started kindergarten this year she's meeting new children and hearing whole other things from them than what's se's been accustomed to. I see the kindergarten class walk by my house when they are headed to the town library each week. Some of them saying some pretty nasty things to each other. She may be trying out some of her new found skills she's heard said.

You really should pull back from being her main disciplinary. Let Dad be 'the bad guy'. BonusMom doesn't necessarily mean the child thinks of Yu as any bonus when it comes to forms of consequences. 

I think I might of talked to her about saying mean/hurtful things. Asked her how she would feel if someone had said such a thing about her. 

First disengagement from SD.  If DH did not do anything about it.  Not only the talk. But punishment.  I would never spend any time with her. No taking her anyplace. No cooking for her. No gifts, no vacation.  If DH did not punish her. He on the way out also.

My SS would have regretted opening his mouth if he ever said something like that to DH. If DH can't discipline her at 5, imagine what she will be wishing for you when she's 15. Don't take over your DH's responsibilities for him.

and honestly the things that some of the little ones say (and then teach their friends to say) astound me. I would let it go and have a talk with her about not saying inappropriate things and additionally dad asking her why she thought she should say that. Punishment at this point is lost. It is more important to talk about empathy, compassion and even what death and injury really means. 

Very rarely have I come across a kid who means the shocking things they say at that age. Mostly it's "naughty and potty humor" and a test to see how the adults will react. Like saying cuss words for the first time. Talking about taking a big poop. Or playing finger guns or a new favorite around the playground, "deaths seen in various kids shows."