Edward Burkhardt, the CEO of Rail World Inc, has said that an employee of the company suspected of failing to engage the brakes of a runaway train has been suspended without pay.
On his first visit to the small Canadian town of Lac-Mégantic, where the blast occurred, Mr Burkhardt said it looked "like a war zone".
He also said he believes "there was no sabotage" to the train - something he is reported to have alleged earlier.
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Staffing levels and worsening pay are to blame, according to the report by the Health Foundation.
At least two intruders broke into the property and shot Mr Hedger in the early hours of Sunday morning.