As someone of Irish decent, I can think of no more fitting blessing for him than the traditional Irish blessing for those that are about to embark on a new journey:
May the road rise to meet you,
May the wind be always at your back,
May the sun shine warm upon your face,
The rains fall soft upon your fields and,
Until we meet again,
May God hold you in the palm of His hand.
I never got the chance to talk with him personally, but I wish his family well, and he will be in my prayers.