Final answer:
Jurors evaluate evidence, including the premeditated nature of the crime argued by the prosecution and the defense's claim of the defendant's limited understanding. They deliberate in secret led by a foreperson and must reach a unanimous verdict; if not, a mistrial is declared.
Step-by-step explanation:
To assess the defendant’s guilt, jurors present various pieces of evidence and witness testimonies that collectively point towards the accused’s involvement in the crime. The prosecution strives to present a narrative of premeditated and cold-blooded murder, emphasizing the atrocity of the act. Highlighting the intelligence level of the defendant as one of a much younger individual, the defense argues a lack of understanding of the crime’s severity on his part. Nevertheless, the eyewitness testimony can possess a substantial influence on the decision-making process, as jurors typically place significant weight on such accounts. In the deliberation process, jurors must achieve a unanimous verdict, with the guidance of a foreperson, reviewing evidence meticulously to make an informed decision without external influence or internal bias. If consensus is unreachable, a mistrial is declared, meaning the prosecution must re-try the case.