For those that haven't seen the full bodycam footage:
https://www.youtube.com/watch?v=XkEGGLu_fNU
Some timestamps:
05:46 Officer asks if GF if he's "on something" and mentions mouth foam a couple of seconds later.
06:23 GF starts resisting and claims to be claustrophobic.
08:16 GF says "Imma die here".
08:54 GF's first mention of breathing.
09:03 GF says "I'll get on the ground, anything."
09:43 GF's first mention of "I can't breathe".
09:54 GF pushes himslf out of the back seat and says "I wanna lay on the ground".
10:15 GF before being placed on the ground claims he can't breathe. Bystander tells him to "just get in the car".
10:50 GF placed on the ground.
11:16 GF asks for his "momma".
12:05 Officer says "EMS are on the way".
13:22 GF says "I'm about to die".
13:28 Officer says "He's got to be on something".
13:48 Officer mentions PCP and "shaking of the eyes".
14:10 GF asks for water.
15:26 Officer says "move him on his side?"
15:36 GF's last mention of "I can't breathe".
16:24 Officer says "I think he's passing out". GF appears unconscious from this point.
19:13 Officers talking to EMS.
20:23 GF placed on gurney.
22:35 Officers question the other occupants of GF's car.
There's nothing racial, and the cops are very patient. The footage, toxicology report, plus the knee technique being in the literal training manual means, if fair, this is an open-and-shut case.