Phil Noble/Reuters
Thomas Mair, the suspect arrested after the killing of Britain’s Jo Cox, a left-wing member of parliament, had links to far-right extremist groups. According to a magazine published by the White Rhino Club, which supported apartheid in South Africa, he was one of their earliest subscribers. Witnesses allege that Mair shouted “Britain first!” as Cox was shot and then subsequently stabbed. Britain First, a right-wing political party founded by former members of the British National Party, condemned the killing and said that Mair had nothing to do with them. Early Friday, Mair was connected to a U.S. white-supremacist group, the National Alliance, according to documents from the Southern Poverty Law Center. Mair reportedly bought a manual from the National Alliance in 1999 with instructions on how to build a pistol. One of the witnesses claimed that the weapon used to kill Cox looked “homemade.”