A Pakistani lawyer under death threats for defending a doctor who helped CIA agents hunt al Qaeda leader Osama bin Laden was shot dead on Tuesday, police said, and a Taliban splinter group claimed responsibility. Samiullah Afridi represented Dr Shakil Afridi, who was jailed in 2012 for 33 years for running a fake vaccination campaign believed to have helped the U.S. intelligence agency track down bin Laden. That sentence was overturned in 2013 and the doctor is now in jail awaiting a new trial. Samiullah Afridi was shot dead on Tuesday as he was returning to his home in the...