Investigators have yet to determine what caused the plane to go down.
Now, perhaps, the investigation is taking a new turn. Adam Horvath, welcome again. Well, the difficulty with the bomb theory is that there have been explosive residues found that would be consistent with various, various explosive devices, including bombs, but they ve been found in different parts of the plane, and they are different explosives, themselves. They found residues of chemicals that are used in explosives. They haven t found what s most important to them, such as the distinctive pitting, the signs in the metal of the plane or the bending of metal that only occurs in a high energy explosion.