I think killing someone is not a good example. Even if it didn’t say not to kill, most people would abhor the idea.
Reasons not to kill:
1-A very frightening thing to do. Most healthy people cannot do such a thing.
2-Would land the killer a prison sentence.
3-Very embarrassing.
4-Because Hashem said so.
If a person is not going to kill someone only because Hashem said so, they must be a very sick individual.