George Floyd appeared 'high' when he handed over fake $20 bill and 'had difficulty forming words', worker testifies, as court is shown never-before seen footage moments before he died

New video of George Floyd inside a Minneapolis convenience store moments before his death was played in court today at Derek Chauvin's murder trial as a witness said that his hands were shaking, he was unable to make conversation and he appeared to be under the influence of drugs. 

Cup Foods clerk Christopher Martin, who was working on May 25, 2020, took the stand on Wednesday to testify about how staff called the cops on Floyd because they believed he used a counterfeit $20 bill. 

Looking back, Martin said he wished he'd never raised alarm about the bill because he believes Floyd might still be alive if he hadn't, telling the court: 'This could have been avoided.'   

Surveillance video from a camera mounted behind the counter showed Martin speaking with Floyd as he used the fake bill to purchase cigarettes. 

Floyd then walked outside as Martin held the bill up and examined it. Martin told the court that he became suspicious of the bill because it had an unusual 'blue pigment so I assumed it was fake'. 

'The policy was if you took a counterfeit bill you had to pay for it out of your pay-check,' Martin explained. 'I took it anyways and was planning to just put it on my tab - until I second guessed myself and eventually told my manager.' 

The manager then instructed Martin to go outside and bring Floyd back, he said. When Floyd refused, a co-worker called police. One of the responding officers was Chauvin. 
Questioned by Minnesota Assistant Attorney General Matthew Frank, Martin said that the two things he noticed about Floyd were his 'size' and he appeared to be 'high'. 

However he said that he did not find Floyd's demeanor to be threatening, saying: 'He seemed very friendly, approachable, talkative, he seemed just to be having an average Memorial Day living his life. But he did seem high.' 

An autopsy found Floyd had fentanyl and methamphetamine in his system at the time of his death. Chauvin's lawyers have argued that his true cause of death was a drug overdose, despite the county medical examiner ruling it a homicide resulting from the police restraint.