A Jacksonville man was killed early Sunday when his truck collided with a concrete barrier and ran off the road as he was exiting Interstate 295 at Blanding Boulevard, according to the Florida Highway Patrol. Christopher A. Thomas, 28, was northbound on the interstate when he drove onto the exit ramp, stuck a concrete barrier and continued across all the traffic lanes on Blanding, striking a fence and a tree in the 1:35 a.m.