Quoted from greatwichjohn:
Latest developments for me as the shipper.
I'd guess the accident was completely their fault. If it were someone else's fault, I'm sure they would have no problem passing the buck.
If you have a date and county for the accident, you might be able to contact the local police department for details on the accident report.
[Edit] looking into the Canadian way reports are handled, it looks like if you weren't directly involved with the incident, it may be a bit difficult to obtain the report.