Of course there has been speculation that the Romanovs were never killed. There has also been speculation about many things in history that are not true, and this fits right in.The photos were taken from them after they were murdered, and put in the archives, and any way some of them must have been left behind at Tsarskoe Selo when they left there. The reason the photos survive is that they were taken from them after they were murdered, and then they were preserved. It doesn't mean they were not murdered.I think the Bolsheviks preserved things because they felt they could keep these things secret, and that they weren't ever going to become public. Had they felt that was the case, they might have destroyed the pictures. Then again, maybe the Bolsheviks kept them because they thought they were evidence against the Romanovs, although I could not be sure what way that would be.