Mwah ha!  Told you I'd find it.  
 
  Here is what I said in a sci-fi post thread I started:
Quote:
Hehe! Now here is something that I use in my fantasy books that can transfer to Sci-Fi!!! 
For some people, minor characters are totally expendable. They mean nothing, have no purpose, the only reason they are brought into existence is to show the readers the danger the main character is in, or some other reason that supports the MC. 
However, in my study of the value and sanctity of life, I decided that, in a way, this was wrong. Not only wrong, but it doesn’t really add emotional impact for the reader. It’s fluff. 
BUT!!!!! I’ve found that if you give value to the life, and play off your readers emotional connection to the minor character (sorry Beta Readers, I like toying with your emotions), you drive the point home. Create a real, tangible character, make your reader care and see them as valuable, and then shock them by killing him. You accomplish so much more.
Here’s an example of what I mean. 
Example 1: A man is walking down a dark street. A monster jumps out and eats him.
Vrs
Example 2: James is strolling down the street, headed to the nearest convenience store because his pregnant wife is craving some pickles and ice cream. He is thinking about what names they should choose for their new little boy who is on the way when a monster jumps out and kills him.
Okay, so the examples were silly, but you get the point, right? The act is more horrible in example 2 because we know and like James. It’s different, and I as the author have given value to James’ life. 
I use this in my novels. I thought I’d share it with ya’ll.
http://www.holyworlds.org/scifi/viewtop ... f=35&t=924So, there is my answer to your question, sorta.  This is how I look at it in writing my books.