The American woman who fled the UK after teenager Harry Dunn was killed in a crash has asked to be interviewed by British police officers in the United States under caution. <br /> <br />Northamptonshire chief constable Nick Adderley announced the news at a press conference where he also urged the family's spokesperson Radd Seiger to "exercise constraint". <br /> Report by Alibhaiz. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn