Quote (MizzouFTW @ Nov 30 2018 10:01pm)
You can't prosecute her on both charges. If you're going to prosecute her for manslaughter then you cannot prosecute for murder. If you are going to prosecute her for murder you cannot also prosecute her for manslaughter. You could if there were separate instances or more than one victim. So no, the fix is not in. They would be charging her twice for the same crime when the variables within the crime committed only allow for one charge. They can charge her with a plethora of other crimes to go along with the murder charge though.
The prosecution can request, and the judge can issue orders, that the jury consider the lesser included offense of manslaughter.
https://www.lawserver.com/law/state/texas/tx-codes/texas_code_of_criminal_procedure_37-09Quote
An offense is a lesser included offense if: ******
(3) it differs from the offense charged only in the respect that a less culpable mental state suffices to establish its commission;
The bold is key, as the main difference between manslaughter and murder is intent, which would be the culpable mental state referred to here.
Although I think you're right regarding the indictment, in that they can't indict on both manslaughter and murder for the same crime. And I think Thor is right, regarding the higher burden of proof being the one they charge cops with.