Difference between 殺人 and 殺人罪 and a change in grammar


In Duolingo this Japanese sentence is the approved translation for the English
sentence:

> He received a guilty verdict for murder.  
>  彼は殺人の有罪判決を受けました。

Likewise for the following pair:

> She was found guilty of murder.  
>  彼女は殺人罪での有罪が確定した。

However, the following is not accepted as a valid translation:

> 彼女は殺人の有罪判決が確定した

despite seemingly having the same structure as the first sentence. I can't see
how the change of verb should warrant an additional 罪で. Am I missing a
subtlety here, or is Duolingo just being annoying?

If both sentences are okay then is there any distinction in nuance?

What is the difference between 殺人 and 殺人罪? Can I omit で from that version, and
if not, why not?




彼女は殺人の有罪判決が確定した seems fine. I think Duolingo is just being annoying there.

As for the additional で, it's not the verb that warrants it, but the noun. 有罪
doesn't itself refer to a verdict but a person's state of being guilty. If you
want to specify what crime the person is guilty of, you should use で.

> 彼女は殺人（罪） **で** 有罪が確定した。

You shouldn't omit this で in a noun phase either, as 殺人（罪） **の** 有罪 would
sound like it's the act of murder that is guilty.

殺人（罪） **の** 有罪判決 is acceptable because this の modifies 判決, not 有罪. You can
also say 殺人（罪） **での** 有罪判決.

This is not really about the difference between 殺人 and 殺人罪. It's just that the
former refers to the act of murder while the latter is the legal term for the
crime of committing it.




彼女は殺人の有罪判決が確定した seems fine. I think Duolingo is just being annoying there.

As for the additional で, it's not the verb that warrants it, but the noun. 有罪
doesn't itself refer to a verdict but a person's state of being guilty. If you
want to specify what crime the person is guilty of, you should use で.

> 彼女は殺人（罪） **で** 有罪が確定した。

You shouldn't omit this で in a noun phase either, as 殺人（罪） **の** 有罪 would
sound like it's the act of murder that is guilty.

殺人（罪） **の** 有罪判決 is acceptable because this の modifies 判決, not 有罪. You can
also say 殺人（罪） **での** 有罪判決.

This is not really about the difference between 殺人 and 殺人罪. It's just that the
former refers to the act of murder while the latter is the legal term for the
crime of committing it.

