taking two cars and an 18-wheeler down with it, and the silver bridge, connecting west virginia and ohio, collapsed in 1967 when the traffic on the bridge exceeded the maximum weight limb. 46 people died. luckily in this case, the only casualty is time. it really is fortunate that nobody was injured other even killed. one of those 911 callers was a truck driver that drove over the bridge with a full load. now, at this point experts don't know how this happened. they are bringing in a team from around the country to figure that out and come up with a game plan on how to fix it. people living here have been told to be patient and be ready for traffic problems. they say this bridge could be out of commission for up to a year. ted rowlands, cnn, green bay, wisconsin. a mother's persistence helped find her son ace killer years after he died. that's ahead. ♪