Prayers on the way for his quick and safe return. May the angels stand guard over him and protect him.
Also, pray that if he faces death, that he faces it like the martyrs of old.
I saw thrones on which were seated those who had been given authority to judge. And I saw the souls of those who had been beheaded because of their testimony for Jesus and because of the word of God. They had not worshiped the beast or his image and had not received his mark on their foreheads or their hands. They came to life and reigned with Christ a thousand years.