George Floyd: Homicide lieutenant calls knee on neck 'totally unnecessary' use of force

Lieutenant Richard Zimmerman, head of the Minneapolis homicide department, has testified that former police officer Derek Chauvin used "totally unnecessary" deadly force when kneeling on George Floyd's neck. Video: Reuters

Associated article


Can the president veto a law?

Professor David Kenny of the School of Law in Trinity College Dublin outlines some of the key powers of the presidency. Video: Dan Dennison


Can anyone run for president?

Professor David Kenny of the School of Law in Trinity College Dublin outlines some of the key powers of the presidency. Video: Dan Dennison


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