"As you all know, the human race has been devastated by the dramatic increase of cancer cases in the past few years due to increased high-frequency EMR pollution back on Earth. Our life span is shortening quickly, and half of the population has become infertile already. If we don't do something, our species will become extinct. We're here to stop that from happening.
"In a matter of days, we'll be passing through Spatial Anomaly 9113276, also known as the Foxfire Anomaly. Our hope is that the unique radiation from this anomaly will alter your cells in such a way that the DNA becomes unalterable by other forms of radiation. If our mission is successful, not only should everyone on this ship be rendered immune to the cancer-causing effects of high-frequency radiations, but existing cancerous cells in our bodies will be purged, curing us completely. If you thought that was great, if the experiment is successful, an analysis of the source of the radiation in this anomaly will allow us to synthesize the radiation at any identical frequency back home, giving us a cheap and easy cure for cancer.
"Also, I would just like to mention that I've heard some rumors about the world's governments and drug companies conspiring against this mission. The theory is that finding a cheap cure does not benefit them economically, and so they want to quash any form of inexpensive cure that may arise. I want to tell you that this theory is ridiculous, and that there is no reason to worry. None of you will be in any danger for the duration of this trip, I guarantee it.
"Last but not least, I'd like to introduce the ship's computer, Axol. Say hello, Axol."
If any of you have any questions, concerns, or requests, feel free to ask me any time, and I will do my best to accommodate them.
"Thank you Axol. Now I'm going to go fly the ship. You folks make yourself comfortable. Call me if you need me."
"Shit. What the hell happened here? Judging from the fact that they're both holding knives, I don't think they did this to each other. It's much more likely that someone here among us did the killing."
"My thought exactly, Ray. I'm going back to the cockpit. We still need to get to the anomaly, and I'm the only one who can fly this ship. The twelve of you should decide on who to throw out the airlock today. Just tell Axol here when you're ready, and she'll open up the airlock for you. Axol, can you keep track of who wants to throw out which person?"
"Excellent. Notify me when they've decided, and I'll come down to unlock the person's room in order to determine if they were a killer or not.
"Good luck. Something tells me you'll need it."