After reviewing the interviews and sifting thru the fire scene, I believe I know how the fire started. Workers confirm that on Thursday afternoon there was a smoldering fire in the shredder. Workers said it was from a 3 ring binder which contained metal and caused sparks as it went thru the shredder. This happens on occasion and the company even has a procedure for this along with a water hose at the machine to extinguish the fire. The workers thought they had the fire completely extinguished before leaving at the end of their shift.
Evidence observed at the scene is consistent with the statements given by employees.
