I like Kasumi a lot, but I feel this way about Sasha. Would love to throw her fake ass out an airlock, Gigi too, while we are taking out the trash.

In all seriousness there is probably zero chance any of the love interests get killed. Either the culprit has a good reason for doing what they are doing, blackmail/brainwashed, etc. Or more likely, it's someone we have not even met yet, who uses the drone for surveillance and has not even been properly introduced to the girls on the ship yet.
Killing a love interest would upset paying Patrons, and that's probably not a risk the Dev will take.