A Chesterfield man who died after a snowmobile crash over the weekend was previously involved in another fatal crash that prosecutors said was “on the fine line between a tragic accident and a crime.”
On Halloween in 2012, Dereck Graves, then 26, was driving north on Route 10 toward Main Street in Northampton in his Dodge Ram pickup truck when he struck Pallav Parakh, a 35-year-old doctor at Baystate Medical Practices in Greenfield…