LONDON – Activists and relatives of those killed in the 1988 Lockerbie bombing raised new questions Sunday about the medical advice that led to the release on compassionate grounds of the only man ever convicted for the deaths. Doctors claimed Abdel Baset al-Megrahi had only three months to live when he was freed from a Scottish jail last August and allowed to return home to Libya. But one year later, Al-Megrahi, who is being treated for prostate cancer, is still alive.