Mary Sanders' son Kevin was among the 12 first responders killed when the blast tore through the West Fertilizer plant. Federal agents say they believe someone intentionally set the fire that led to a 2013 fertilizer plant blast that killed 15 people and devastated a small Central Texas farming town. Law enforcement experts said a suspect's intent could be important as prosecutors decide whether to pursue arson, murder or domestic terrorism charges. Intent also could pay a role in sentencing should the government proceed with a case and win. She says a few of those thoughts went through her mind, freshening the pain just as she and her family were "just finally coping" with his death.

Source: Fox News May 12, 2016 01:15 UTC