Records for Railroad fatality in 1909

Where can I find records of a railroad fatality in 1909?  My great grandfather was killed by Norfolk Southern and I would like to find records about his death. His name was Thomas Butler Murdough. He lived in Edenton, Chowan County, North Carolina.  His widowed sued but I could not find the detailed records of his death.  Any help on leads you can provide would be greatly appreciated.