Floyd's girlfriend recalls their struggles with addiction

She said they “tried really hard to break that addiction many times.” Prosecutors put Ross on the stand as part of an effort to humanize Floyd in front of the jury and portray him as more than a crime statistic, and also explain his drug use. The defense has argued that Chauvin did what he was trained to do when he encountered Floyd last May and that Floyd's death was caused by drugs, his underlying health conditions and his own adrenaline. An autopsy found fentanyl and methamphetamine in his system.

In other testimony, David Pleoger, a now-retired Minneapolis police sergeant who was on duty the night Floyd died, said that based on his review of the body camera video, officers should have ended their restraint after Floyd stopped resisting. He also said officers are trained to roll people on their side to help with their breathing after they have been restrained in the prone position. “When Mr. Floyd was no longer offering up any resistance to the officers, they could have ended the restraint,” Pleoger said.

"And that was after he was handcuffed and on the ground and no longer resistant?” prosecutor Steve Schleicher asked. Yes, Ploeger replied. Chauvin, 45, is charged with murder and manslaughter, accused of killing Floyd by kneeling on the 46-year-old Black man's neck for 9 minutes, 29 seconds, as he lay face-down in handcuffs, accused of passing a counterfeit $20 bill at a neighborhood market. The case triggered large protests around the U.S., scattered violence and widespread soul-searching over racism and police brutality. The most serious charge against the now-fired white officer carries up to 40 years in prison.

Also Thursday, a paramedic who arrived on the scene that day testified that the first call was a Code 2, for someone with a mouth injury, but it was upgraded a minute and a half later to Code 3 — a life-threatening incident that led them to turn on the lights and siren. Seth Bravinder said he saw no signs that Floyd was breathing or moving, and it appeared he was in cardiac arrest. A second paramedic, Derek Smith, testified that he checked for a pulse and couldn't detect one: “In layman's terms? I thought he was dead."