Many in the US accept the government claims that planes hijacked by terrorists, & the fires they created when colliding with the Towers, caused the WTC buildings to collapse and the resulting destruction in the WTC. This book presents facts that show this conclusion is fraudulent. Using many images & elementary physics principles, it is shown that neither planes nor fires they created by collisions with the Towers, nor lasers, nor missiles, nor nuclear bombs caused this destruction, but 2 types of non-nuclear explosions did, 1 of which produced the large white dust clouds after each Tower collapsed, whereas the other produced the melted metal observed in the rubble for many days after 9/11. We need to solve the crimes of the century, involving murders both at the WTC & those who witnessed or were investigating the real facts. Many 1000s have been killed in the 2 wars stemming from 9/11 as well. Finding all the criminals behind these events is paramount.