Is Guinevere guilty?

In blood bath quest you can lead invistigation about blood bath case

What to chose?

The first time i killed her, because all the evidences, but felt like I did something wrong.
It is worth taking Pascal and Cassia with you for help and Irlen for very necessary comments.

In general, she is really not guilty, the blame lies with the guardian Hrotko. To prove this, you need to investigate the following:

- Find out who disfigured the body.
- You can't disfigure the body and stay clean, look for...
Then, after the appearance of the fake Gvedon, the option will appear:

- Our investigation tried to put off on a false trail....
And there point out the option
- Synthetic fabric was found near the body...

Correct investigation will give a good overall bonus to the ship. And great moral satisfaction.

[humanoid]

Anyway she's guilty in lying to Rogue Trader, in falsification of evidence of forbidden cult, and in forcing innocent to incriminate himself. More than enough to execute her