I'm not sure what the purpose is for the G family through their attorney to file a notice or motion regarding their wishes that this case be prosecuted as a death-eligible case. Does it have something to do with a pro forma action step that could be related to the potential lawsuits they have announced?I like the theory!
In practice, I think the Goncalves family will file the Motion no matter what the prosecutor does or does not. So far they also seem to be heavily representing and/or influencing the Mogen family, too, so I would not think that it means anything other than the respective people being the early stages of grief, even if both families file the Motion. Considering the previous actions of the family, such as leaking information and considering suing the LE, I don't think their actions are too likely to be fully logical here.
The sentencing jury will not take into consideration the families' wishes regarding the death penalty if the case gets to that stage. If the families do mention their wishes for the dealth penalty sentence when they give their victims impact statements, then the judge will instruct the jury not to take that into account in their deliberations.
So I am thinking it must have to do with potential future lawsuits.
JMO.