Sean McMullen is a photographer and a diver who has uncovered a lot of old bottles and other things in the waters of Nova Scotia. He documents his finds on his YouTube Channel, Saltwater Sean. Last weekend while snorkelling under the overpass in Fall River between Lake Fletcher and Lake Thomas. he was shocked by what he spotted on the murky bottom. He discusses his find and how the RCMP reacted when he called to report he'd located an old, rusty sawed-off shotgun.