Not long enough. With good behaviour, he'll be unlucky to serve a year (I have experience of the prison service. On the right side of the bars, I might add!).
I was so relieved when one of them tweeted that they were all OK as one was a good mate of mine, Adam Archer. He also posted on Facebook from the scene just after the plane ditched, with pictures, these days of instant news & social media are amazing! It was his first...... and he vows last, twitch by charter flight!! I don't blame him!