I think the guy who wanted to roll George on his side might get a lighter sentence than the others.
It might get him off the aiding and abetting second degree murder charge completely, since that statement undercuts the required intent for aiding and abetting.
Charges upgraded against former Minneapolis officer Derek Chauvin in George Floyd death
Murder 2, is that you meant to kill someone. Murder 3 is that you didn't mean to kill someone, but they died.
Keep in mind though that Chauvin is charged with unintentional second degree murder committed during the commission of another felony.
Too be honest, whether Chauvin gets convicted for third degree murder or unintentional second degree murder won't matter for sentencing, since the sentencing guidelines for both are the same.
http://mn.gov/msgc-stat/documents/Guidelines/2019/MinnSentencingGuidelinesCommentary.pdf
The guidelines say 150 months for someone with no priors, with a range of 128 to 180 months.