If I may..Time delayed fuse was set too long...
I read that - it was on fire for something like seven hours and had been hit by debris when the Towers fell.
And about four other buildings besides those three were also destroyed, and a handful of others were damaged severely.
To me, to believe that WTC 7 was destroyed on purpose while at least a half dozen others were destroyed utterly that day from planes, fires, falling debris - AND that somehow, no one has said anything - THAT is harder to believe.