Q:Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: What was hanging from the rearview mirror? Movie plot title: The Pledge Movie plot: ***DEFINITE SPOILERS***This is a movie concerning a retiring detective Jerry Black (Jack Nicholson) who, at his retirement party, is involved in the investigation of a brutal rape and murder of a young child that has only just been discovered.When the duty falls to him because the local police apparently refuse it, he tells the parents of the child's death. The distraught mother exacts a pledge that he will find the murderer "upon his soul's salvation".Meanwhile, the police arrest a retarded Native American trapper who had been seen at the scene of the crime and who has a previous rape history. The overzealous officer in charge uses unorthodox tactics to extract a confused confession. The Native American, confused and feeling horribly guilty, kills himself. Case Closed, right? Not for Black.Black determinedly investigates the murder and interviews the victim's best friend who tells him that the victim had a friend, a "Giant" called the "Wizard", who was giving her little porcupines. The victim had drawn a picture of herself with the Giant and his vehicle which Black steals to use to broaden his growing dossier. Black's investigation uncovers two other cases involving victims with strikingly similar descriptions which have remained unsolved. One of the similar murders happened while the Native American suspect was in jail. He fails to convince his fellow officers that they should keep the case open and although retired, must keep his promise and find out who murdered the victim in this case. He buys a store-gas station in the region in which the murders occurred.He makes the acquaintance of a local waitress-bartender Lori (Robin Wright Penn) who just so happens to have a young daughter fitting the profile of all the victims. Lori is also a victim, of domestic abuse, and leaves her husband one rainy night after having been badly beaten and seeks assistance from Black. Black invites her and her daughter to stay with him temporarily, "no strings attached" but they eventually move in with him and the story kicks...
A:
a tiny porcupine