The kink in the second full size photo looks just like the kink in WTC 7... neat.
They must have used some dusty cables on 6.
(Unidentified construction worker): "Hello? Oh, we're getting ready to pull building six."
Luis Mendes, NYC Dept of Design and Construction: "We had to be very careful how we demolished building six. We were worried about the building six coming down and then damaging the slurry walls, so we wanted that particular building to fall within a certain area." - (video clip - Link)
There’s an immediate issue with this, though, because building 6 was not demolished with explosives. Joël v.d. Reijden reported an ImplosionWorld comment that describes what “pulled”, in the WTC6 context, actually meant:
Conventionally, "pull a building" can mean to pre-burn holes in steel beams near the top floor and affix long cables to heavy machinery, which then backs up and causes the structure to lean off its center of gravity and eventually collapse. But this is only possible with buildings about 6-7 stories or smaller. This activity was performed to bring down WTC 6 (Customs) after 9/11 because of the danger in demolishing conventionally."- 911myths.com