Floyd had norfentanyl in his blood (the metabolite of fentanyl) because his first ingestion of fentanyl is not the one that contributed to his death. He lived long enough to metabolize that first ingestion. But then, as officers Lane and Keung approached his vehicle, Floyd shoved speedballs in his mouth (to hide them, probably). They began to dissolve as he was walked to squad 320. He began actively fighting just as the meth was kicking in a few minutes later he spit the speedballs out of his mouth into the back of squad 320, but not before a second dose of fentanyl made its way into his bloodstream. Almost exactly five minutes later, he was dead —- corresponding precisely to the timing of anticipated peak respiratory depression. There’s a lot more here, but all of it is consistent with the same conclusion: the second dose of fentanyl played a material role in Floyd’s death, together with other factors. But none of them had anything to do with Chauvin.