A death penalty trial is underway for Alberto Sierra, who pleaded guilty to murder in August. The 42-year-old admitted to suffocating his estranged wife, Gladys Machado, and her two daughters, Julia and Daniela Padrino, with a plastic bag in 2012. He also confessed to sexually abusing the corpses of Machado and Julia.

The prosecution has presented evidence, including text messages Sierra sent after the murders, in which he claimed to be unaware of the victims' whereabouts. Several witnesses have taken the stand, including Machado's son, Michael Padrino Jr. Further details about the trial and the events surrounding the murders are available from the source.

The prosecution has rested its case, marking a significant development in the trial.