Michael Corcoran, left, and David Kosineski.

Niskayuna High buddies finish cross-country trip

BY REBECCA ISENHART Gazette Reporter Last year, a filmmaking trio of Niskayuna High School alumni, Michael Corcoran, Gavin Dowse and David Kosineski, dreamed of taking a road trip across the country. Corcoran, who had just completed his freshman year at…