TWO MURDERS TOO FAR- PERHAPS MISGUIDED, PERHAPS BELATED BUT 80,000 PEOPLE HAVE SIGNED- AND THEY WANT UK GOVERNMENT TO BE MORE ACTIVE- An online petition demanding a British investigation into the deaths of backpackers Hannah Witheridge and David Miller may be less than pragmatic – but some 80,000 people have signed – some of whom plan to march on Downing …