Odrade,
The reason most of us are here is because we have, at one time or another, shared your same feelings/uncertainties. Truth is; WE can't save anyone. If there is a god, that's his responsibility. We're just imperfect, sinful, weak humans, his helpless children, right?
Think of the fable of Noah. Who did he save? Animals, that's who he saved. The SPCA is proud of him. He may have been a good ark builder (yea right), but he was a very ineffective preacher!
All those years of preaching and only his own little cult of 8 survived! lol But he was busy all those years doing the "lord's" work which was the important thing right?
Even if you actually killed someone, remember the fable of King David---the adulterer! God forgives blood guilt, or at least he should since the bible is full of accounts where he, god, spilled the blood of thousands of innocent humans.
just saying!
eyeuse2badub