WATCH: Prosecutor stresses that George Floyd said 'I can't breathe' 27 times while Derek Chauvin kneeled on him

• Former Minneapolis police officer Derek Chauvin is on trial for the murder of George Floyd. 
• The prosecutor highlighted George Floyd said "I can't breathe" 27 times.
• The defense claims Floyd's health was already "compromised" and that he died of cardiac arrhythmia. 
• The trial started on March 29, and it's expected to last about one month.
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