Attorneys for Kimberly Clark Saenz and the State of Texas have filed competing briefs in Saenz' case before the Texas Court of Criminal Appeals.
Saenz is seeking to reverse the guilty verdict she received in 2012 after killing a number of elderly patients at a Lufkin dialysis clinic by injecting them with bleach. She received a life sentence without parole.
At the time, jurors were only required to come to an agreement on the fact that Saenz killed two or more people inside that dialysis clinic. They were not required to agree upon whom those victims were or exactly how many deaths Saenz was responsible for.
Defense attorneys are arguing that those requirements created a special law to be used against Saenz--and therefore put her at an unfair disadvantage. Prosecutors argue it's the same standard that's been used in similar cases.
No court dates have been set in that appeal.