Railroad Detective John Mahoney was struck and killed by a train in the rail yards in north Hammond.

   In the early morning hours, he was walking across the Wolf Lake bridge when he was overtaken by a quickly approaching freight train. He attempted to run to safety but fell as he stumbled and was struck by the oncoming engine.

   Railroad Detective Mahoney, from Chicago, Illinois, was assigned to the Chicago Terminal Division. He was single and survived by his father.

The responsibilities of the Pennsylvania Railroad Police Department (1846–1968) are now under the jurisdiction of the Norfolk Southern Railway Police Department.

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This officer, discovered in 2018, has not been submitted for consideration as an eligible line of duty death to the National Law Enforcement Officers Memorial Fund by the Norfolk Southern Railway Police Department.