DARIEN - Metro-North says toxicology tests on the Darien man hit and killed by a train earlier this year came back negative.
Kevin Murphy, 55, was waiting for a train at the Noroton Heights station when he disappeared from view last March.
Authorities say he was hit by the train and died from blunt force trauma.
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They are not treating his death as a criminal investigation, but are still trying to determine how Murphy wound up on the tracks