James "Pip" Marshall has been sought by law enforcement since he shot a man in the leg in June in Ithaca's West Village Apartments.
Twenty percent of eligible students skipped the tests in April.
As many as 44 100-car oil trains a week move through upstate New York.
Deputy County Administrator Paula Younger says a new development in the standoff investigation isn't a setback, just another step in the process.
The U.S. trade deficit fell in July to its lowest level in five months as exports rose broadly, signaling underlying strength in the economy amid concerns about a global growth slowdown.