A Shocking Discovery Reveals How a Home Renovation Ended up in the Hands of the FBI

After living in their new Cleveland home for a couple years, a 35-year-old handyman and his wife made the decision to take on remodeling the house themselves, focusing first on the basement followed by the first and second floors. 

After finding mysterious inscriptions written on the walls, they were a little hesitant as to what they may find as they continued on with the rest of their home. But there was no way to prepare themselves for what they were about to find...