Don't ya recogn that it would be prudent to keep someone locked up who drowned little kids regardless of if they meant to do it or they were nuts when they did do it? What difference does the Why they did it make?
If you were charged with a crime, whether you committed it or not, and I was the a witness that allegedly lied on the stand regarding facts about you and you were convicted and sent to prison, then clearly you would not want it overturned either!
Even witnesses must be held accountable to the law and the outcome of their testimony as well with respect to the facts of the case. If the facts surrounding Andrea's case still hold then she will still be found guilty.
This is a prosecutors dream , A second bite at the apple if you will ! She will get a second trial due to the lie of a witness ( I wonder if the witness will be charged with perjury ? ) But with being retried she can he held to the death penalty , That is why the state isn't jumping up and down wanting the original verdict to stand as they would with any other trial .