Really? I think you don;t need to look too deep into the killers history and mental state to see why those killings happened.
The subject of slavery is far more sensitive and is going on today around the world still he could have asked about it's relevance today but just went for the sensationalist question and it back-fired.He should have known QT will have been asked that question before and that it's really nothing new or special.
Have you watched the interview? No-one mentions Sandy Hook. It is only alluded to after QT has reacted.
I thought QT was basically tired and emotional, and a bit on edge.