When a celebrity chef is found dead, Samantha Barnes, the "Cape Cod Foodie", finds her search for the world's best blueberry buckle turning into a search for a killer The Fourth of July is coming, and for professional food lover Samantha Barnes, it's all about the picnic. Okay, and the fireworks. And the parade. But mostly the picnic. What could be better than a DIY clambake followed by the best blueberry buckle in the world? Sam has...