Question of the day

A man is on life support and doctors think it's time to take him off it. But they need permission from the man's family to do so. Thing is, he has only two people in his life who can make the decision. A girlfriend he's been dating for several months and an ex-wife and mother of his three young children he divorced several years ago.

Who has the right to sign off his death, girlfriend or ex-wife? Please share your thoughts.