Alberto Sierra to soon learn fate as closing arguments in death penalty trial have wrapped late Monday afternoon

Closing arguments wrapped up late Monday afternoon in the death sentence trial of 42-year-old Alberto Sierra."He chose death, at every opportunity, every opportunity, when he could've chosen life, and he could've walked away," prosecutor Abbe Rifkin told the jury.Closing arguments from both the prosecution and defense lasted all day in a Miami courtroom.Sierra pleaded guilty in August to the 2012 murders of his wife, 29-year-old Gladys Machado, and her two daughters, 6-year-old Julia Padrino and 3-year-old Daniela Padrino.Sierra confessed to suffocating the victims with a plastic bag before sexually assaulting Machado and 6-year-old Julia. During the proceedings, the prosecution presented a small mannequin to demonstrate how Sierra killed 3-year-old Daniela.The defense argued that Sierra's decision-making abilities were permanently altered after he was struck by a car at age 12."See the amount of brain space that is missing? That is not a healthy, normal brain. A non-healthy brain has