Parliament comments follow investigation revealing how man was tried at court martial on US airbase A US military worker killed my son in Britain, and still we fight for justice. I’m angry others are waiting too David Lammy, the deputy prime minister, is raising with the US government the “extremely concerning” case of an American fighter pilot who avoided a trial under English law for strangling a woman at his home in Cambridge. Lammy, who is also the justice secretary, told parliament that he wanted the US government to give a full account of the case of Sarah Steele, an academic who was assaulted by the pilot.