NEW HAVEN — Vermont’s Chief Medical Examiner has ruled that the death of a New York man struck by a tanker truck in New Haven last month was a suicide.
Marcin J. Kosz, 40, of Lake George, N.Y., died instantly when struck by the truck on Route 7 near Town Hill Road in New Haven about 10:46 p.m. on May 5, Dr. Steven L. Shapiro, Vermont’s chief medical examiner, reported last week. 
Shapiro said death was due to blunt impact to the head, torso and extremities.
Vermont often experiences a few deaths each year that initially appear to be due to motor vehicle crashes, but upon further investigation are determined to be suicides. 
The driver, Arthur Derosia, 54, of Swanton was northbound and driving about 50 miles per hour — the posted speed limit, state police said.
Trooper Sean Hauter said the investigation should wrap up shortly, but he does not expect any criminal charges based on all the information gathered.
He said police are waiting for some lab results and for translation for certain documents uncovered in Kosz’s car that was parked nearby. The documents were in Polish. Kosz was born in Poland, the medical examiner said. 
Derosia, who was wearing his seatbelt, was hauling water, police said. Speed, alcohol or drug impairment were not factors in the crash.
It took several days to confirm the identity of the dead man because Kosz did not carry a wallet or any identifying papers, state police said. They said fingerprints eventually provided the lead on his name.