Nice, nice. Very deep. "Am I my brother's keeper?" Good use of a Biblical reference. It's interesting that you picked out that one particular instance of murder from Genesis. (That was your intention, right?). That was thing that stood out for me. Also, you ended the poem remarkably. I like the last two lines. Shouldn't the last line have a question mark, though, and not a period?
Anyway, at least you can write short poems. You're gifted in it, that's for sure. But the long poem you sent me wasn't boring at all.