A grand jury is composed of a group of individuals whose main purpose is to determine whether to issue an indictment against an individual. This process of determining whether or not to issue an indictment is commonly known as a grand jury investigation. During a grand jury investigation, the grand jury makes no decision or conclusion as to the guilt or innocence of an individual. It only determines whether there is probable cause, or enough evidence to suggest, that an individual may have committed a crime.
Yes, it celebrates Dia de los Muertos (The Day of the Dead) along with Mexico, other Central American countries, and some South American countries (like Peru).
The celebration of the Mexican Day of the Dead is the best example of this blending of traditions. Skeletons and skulls were important symbols of death and sacrifice in the pre-Columbian period, but the figure of a satirical and comical death probably appeared during the 1700s.