Donna Moonda was simultaneously a golddigger and a cradle robber. The foolishness of this course of action was exacerbated when she hired the guy whose cradle she robbed to kill the guy she was mining the gold from.
He’s probably going to get 17 1/2 years, while she could get a death or life sentence. This doesn’t seem quite right, although it’s probably because he managed some sort of plea bargain.