Final answer:
In the context of '12 Angry Men', Juror 8 is the one who initially votes 'not guilty'. Jurors in this play are identified by numbers and Juror 8's vote leads to further deliberations.
Step-by-step explanation:
The question seems to reference a scenario from the film or play '12 Angry Men' where a jury deliberates on the innocence or guilt of a defendant. During the initial vote, Juror 8 is the one who votes 'not guilty', sparking the rest of the play's or film's plot where the jurors discuss and re-evaluate the evidence and arguments before reaching a unanimous decision. Please note that the jurors in '12 Angry Men' are identified by numbers, not letters. If you are referring to this scenario, then Juror 8 would be the correct answer. However, if this is a question based on a real-life or different fictional scenario, you would need to provide more information about the jurors identified as A, B, C, and D to accurately determine who votes 'not guilty' first.