The Big Read: Firefighter's death a 'fire bell in the night'
![The Big Read: Firefighter's death a 'fire bell in the night'](http://media.apn.co.nz/webcontent/image/jpg/201618/mittendorffcrop_70x70.jpg?media_subtype_id=16|caption=Fairfax County firefighter Nicole Mittendorff in an undated family photo. Her body was found in Shenandoah National Park. Photo Washington Post / Supp)
When Fairfax County, Virginia, firefighter Nicole Mittendorff died suddenly in April, a fellow firefighter likened the death to a "fire bell in the night" demanding an urgent response.
It is not known ...