A Minneapolis homicide investigator has testified that Derek Chauvin used “totally unnecessary” deadly force when kneeling on George Floyd’s neck during an arrest last May that sparked global protests against police brutality.
- A central argument of the defence case is that Mr Chauvin was correctly following his police training
- Lieutenant Zimmerman arrived at the scene about 30 minutes after Mr Floyd was pronounced dead
- He said police had a duty of care to people they arrested
Mr Chauvin, who is white,…