island, new york. >> it's a great neighborhood. good schools. nice area. houses are mostly well kept. ♪ >> among the properties in the shoreline village, heuermann's home stands out. >> anybody who drives by always is looking. it's kind of an eyesore. >> it's on my block. halloween came. i just said don't trick or treat there. the house just doesn't look right. >> but you never thought there was actually anything happening. >> a source involved in the investigation believes heuermann may have lured the victims to his home, killed them there, then dumped the bodies. >> every time a murder was committed, his wife was out of the state. >> heuermann's wife was in maryland when megan waterman went missing according to authorities. new jersey when amber lynn costello vanished, and iceland