For those who have the patience/endurance/attention span, here’s the link to the complete report from the Transportation Safety Board. Extremely detailed and informative.
http://www.tsb.gc.ca/eng/rapports-reports/rail/2013/R13D0054/R13D0054.asp
PS or read it in PDF format http://www.tsb.gc.ca/eng/rapports-reports/rail/2013/R13D0054/R13D0054.pdf
but decided that 191 pages was a bit too rich. Even though I really like reading on the couch.