Father and son are among five killed in horrific blast at Pittsburgh house that sat on abandoned mine

Casey Clontz, 38, and his son Keegan, 12, (top right) lived just four houses away from the property which exploded on Saturday in Plum at 10.22am. Authorities confirmed that five people, including a child, died in the incident and two neighboring properties were destroyed. Terrifying footage showed a property on Rustic Ridge Road exploding, causing other properties to go up in flames. A GoFundMe has been set up for the Oravitz family (bottom left) who lived at the destroyed home, though it is unclear if any of them are among the dead. Paying tribute to the father and son, the family said that Casey was a 'loving father, husband and brother', adding Kegan was a 'devoted son, friend and big brother'. Casey leaves behind his wife Jen, and daughter Addie, 10, with the family adding: 'Their smiles and laughter filled their family's and friends' hearts with joy that can never be replaced.' Relatives did not say why the father and son were at the Oratvitz's property, but explained it wasn't uncommon for them to stop by as they were 'very friendly' with neighbors.