Britain's Labour Party MP, Jo Cox, was killed on Thursday by a gun-and-knife wielding attacker in her small-town constituency Birstall in West Yorkshire, a week before the crucial referendum on UK’s EU membership. Police confirmed that they arrested the suspect who was a 52-year-old man named Tommy Mair. Here is how leaders mourned her death on Twitter. The death of Jo Cox is a tragedy. She was a committed and caring MP. My thoughts are with her husband Brendan and her two young children. — David Cameron (@David_Cameron) June 16, 2016 "It is cruel and terrible that her life was cut short by a violent act of political intolerance" —Hillary on Jo Cox: — Hillary Clinton (@HillaryClinton) June 16, 2016 "This is absolutely tragic. Such a pointless and savage act of hatred contradicts everything Jo lived & worked for." — Tony Blair Office (@tonyblairoffice) June 16, 2016 Deeply shocked by the murder of UK MP Jo Cox. Our condolences, prayers and solidarity are with her family & the people of the UK. — Malcolm Turnbull (@TurnbullMalcolm) June 16, 2016 My heart breaks for the loss of Jo Cox and for Brendan and their kids. She was so full of life and joy. Words feel hopeless right now. — Ed Miliband (@Ed_Miliband) June 16, 2016 Absolutely sickened to hear of the assassination of Jo Cox. She was young, courageous, and hardworking. A rising star, mother, and wife. — Gabrielle Giffords (@GabbyGiffords) June 16, 2016 The whole of the Labour family, and indeed the whole country, is in shock and grief at the horrific murder of Jo Cox pic.twitter.com/obic5pOCS3 — Jeremy Corbyn MP (@jeremycorbyn) June 16, 2016 The horrific loss of MP Jo Cox is one that should be felt deeply by every American. For so very many reasons. — Martha Plimpton (@MarthaPlimpton) June 17, 2016 "Hate doesn't have a creed, race or religion, it is poisonous." - widow of Jo Cox MP, so eloquent and accurate in the midst of his grief. — Mehdi Hasan (@mehdirhasan) June 16, 2016 Rest in peace, UK MP Jo Cox. Another victim of methodical hatred and vicious intolerance for contrarian views. — Mehr Tarar (@MehrTarar) June 16, 2016 In shock and saddened at the murder of British MP Jo Cox. The world is darker this week. A brilliant loving wonderful mom.just horrid. — Sarah Parcak (@indyfromspace) June 17, 2016 One 18 yr old told me she encouraged him into politics. He stood as a council candidate, then she said 'now study for your A levels' #JoCox — Mishal Husain (@MishalHusainBBC) June 16, 2016
