John J. Byrne: key obituary facts
Is John J. Byrne dead? Yes. John J. Byrne died on March 7, 2013, at age 81.
Cause of death: John J. Byrne's cause of death has not been publicly confirmed.
What was John J. Byrne known for?
He was known as American insurance executive.
American insurance executive
Died on Thursday March 7th 2013