Police Complete Toddler Death Investigation

By Lesley Engle

Published 07/03 2014 11:52AM

Updated 07/03 2014 04:11PM

Vermont State Police say they’ve completed their investigation into the death of a 22-month-old boy from St. Johnsbury.

Police say Mason Keithan died of natural causes from bronchial asthma. He was found unresponsive at his home on May 31.

Police say toxicology results showed nothing unusual; and there weren’t any signs of trauma.

Keithan had a pre-existing asthma condition, police said.

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