>> skyler talks about hearing this unusual sound. do you remember anything like that? >> our neighbors, like, shoot guns. like maybe a gunshot or maybe like glass broke. i don't know. it was one of those two things maybe. >> according to tom, the sound he heard was nothing more than glass breaking. >> they're old barn windows that i was trying to clean up and i went to grab them and one of them slipped out of my grip and it smashed on our back porch steps. >> and made a lot of noise. >> yeah, it did. yep. >> but detective carbon wasn't buying tom's explanation. the boys were playing over by this barn? >> yes. >> and how far is that to the house? >> it's approximately 75 yards. >> mr. foley claimed he with was dropping a window. would that sound have penetrated that far? >> in my opinion, that couldn't have happened. >> police also say they carefully searched that area around the back porch.