RE: What about the people who jumped from the Twin Towers to avoid burning alive?
I believe that God takes into account the situation the person is in.
For instance, Lying is a sin. However, if you lie to protect an innocent life, you are not held morally culpable.
Example:
EXODUS 1:15-20
15 Then the king of Egypt said to the Hebrew midwives, one of whom was named Shiphrah and the other Puah, 16 “When you serve as midwife to the Hebrew women and see them on the birthstool, if it is a son, you shall kill him, but if it is a daughter, she shall live.” 17 But the midwives feared God and did not do as the king of Egypt commanded them, but let the male children live. 18 So the king of Egypt called the midwives and said to them, “Why have you done this, and let the male children live?” 19 The midwives said to Pharaoh, “Because the Hebrew women are not like the Egyptian women, for they are vigorous and give birth before the midwife comes to them.” 20 So God dealt well with the midwives. And the people multiplied and grew very strong. 21 And because the midwives feared God, he gave them families.
Sounds relative