Derek Chauvin's trial focuses on cause of death

03:35

It has been quite a week at the Derek Chauvin's trial. The week has focused mainly on highly technical and medical testimony with the prosecution saying Floyd died ofasphyxia, the result ofChauvin's knee​ on his neck for more than nine minutes while the defense argues Floyd died as a result of cardiac arrest, brought on bydrugs in his system and underlying health issues.

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