1) The title gave it a way a bit, though the last segment of the last line went in a different direction than I expected.
2) I feel that it does. Although you've expressed that you want it to sound distant, that isn't the problem for me. My issue comes with the lack of anything tangible to hold onto. I understand you want to leave you readers hanging for the last line, but the poem doesn't have much that makes me stick around until that turn. I believe some solid imagery, exact quotes from the voices, some reaction from the character involved, or something more concrete would do a lot more for me.
3) Other than the comma before "too," this is grammatically sound.
4) I actually like the technique of single line stanzas.
As I said, I feel like this poem needs more concrete details in order to lead the reader until the end. You have a clear vision of where you want the poem to go, but nothing happens until we get there. Even though I like the technical aspect, the writing leaves me wanting more detail and something to make me care.
In the same breath, I feel that the final stanza is too clunky. You've added a lot of extra words that don't need to be there without adding anything of meaning. It sounds deadpan in a way, which isn't necessarily bad, but it doesn't do anything for this particular poem.