st. charles parish sheriff greg champagne says cpl. burt hazeltine was directing school buses on us 90 near louisiana street in the town of paradis , just west of new orleans .
a male suspect , later identified as former transportation safety administration worker 56-year-old paul devillier , was arrested a short time later after a brief ` tussle ' with officers .
hazeltine is believed to have returned fire , but it was unclear whether paul devillier was wounded that