Mankato (KMKO)-A Lake Crystal woman will be sentenced today for the murder of her husband.  Jennifer Nibbe faces 25 years in prison after pleading guilty to second degree murder.  The 34-year-old woman was originally charged with first degree murder for the shotgun slaying of her husband, James Nibbe, in their home on August 31st, 2010.  In the plea hearing, Nibbe testified that she remembers loading a shotgun, but not pulling the trigger.