Heart-stopping video captured a massive house explosion in Plum, Pennsylvania. The blast killed five people and destroyed three homes. Casey Clontz and his 12-year-old son were found dead in the wreckage of the house next door. In a statement, their grieving relatives say "Their smiles and laughter filled their family's and friends' hearts with joy that can never be replaced." Inside Edition's Steven Fabian has more. A GoFundMe page was created to help the families impacted by the explosion.