A man was killed in an exchange of gunfire with State Police last night in Indiana County. Troopers responding to a reported assault say the man opened fire on them at a home in the 3-thousand block of Dixonville Road in Grant Township around 5 p.m. The man, who has yet to be identified, reportedly started a fire inside his house, then climbed onto the roof and fired the shotgun at responding officers, who fired back, killing the man. The troopers are on administrative duty while the shooting is being investigated.