I am just loving this. You've expanded the search to include a fun list of possible suspects and each one of them could have any motive for killing Claude.
I find it interesting that his purpose on the station was to sleep with as many women as possible...sounds like his dream job to me.
And I can't help but want the sobbing ex girlfriend to be the killer...just cause she's annoying

he he!
Seriously though this story is amazing. Keep it up!