evidence: Prosecution witnesses on Tuesday described in searing detail their horror in watching the final moments of George Floyd's life as they testified against Derek Chauvin, the former Minneapolis policeman charged with Floyd's murder. [...] "Mr. Chauvin seemed very comfortable with the majority of his weight balanced on top of Mr. Floyd," Genevieve Hansen, who took the stand in her white Minneapolis Fire Department uniform with a badge and black tie, told jurors. "In my memory, he had his hand in his pocket." [...] Minutes later, Frazier's young cousin, her hair in braids, took her place in the witness stand, saying in a small voice she recognised Chauvin as the man she saw kneeling on Floyd.