Puzzle: The Sky Diver

Pierre went skydiving (跳伞)near his home in Dallas, Texas. As a result, Pierre saved his brother’s life. Strangely though, his brother lived in Boston and hadn’t seen or spoken to his brother Pierre for a great many years. How could this miracle have taken place?
Clues:
Q: Did Pierre discover something which was a help to his brother?
A: No.
Q: If Pierre had stayed home that day, could he have saved his brother’s life?
A: No.
Q: Did Pierre communicate some information to his brother which saved his brother’s life?
A: No.