In the fatal shooting of Breonna Taylor the Kentucky Attorney General presented a case to a Grand Jury, but the only indictment was for wanton endangerment. Recently this Washington Post story and this CNN story report that at least two jurors have said that neither murder nor manslaughter charges were presented to the jury, even when jurors asked abut such charges. Other sites carry similar stories.
I understand that normally when a Grand Jury declines to indict for an alleged crime, prosecutors may not present it again to a future Grand Jury. (I believe this rule is statutory, not constitutional.) But when, as here, the crime was not even presented to the jury, although the events were, could a later AG or special prosecutor bring such charges?