彼が持っていたものは真札だったという話も出てこないので、そこは本当に偽札だったのでは

同じ記事のNYT版
https://www.nytimes.com/2020/06/10/us/politics/george-floyd-brother-congress-philonise.html
The elder Mr. Floyd was arrested over a complaint that he had bought cigarettes with a counterfeit $20 bill.