Missing person

Urban legend (sometimes modern legend, urban myth, or simply legend) is a genre of folklore concerning stories about an unusual (usually scary) or humorous event that many people believe to be true but largely are not.

These legends can be entertaining but often concern mysterious and troubling events, such as disappearances and strange objects or entities. Urban legends may confirm moral standards, reflect prejudices, or be a way to make sense of societal anxieties.

Amy Billig (January 9, 1957 – disappeared March 5, 1974) was an American high school student who disappeared while hitchhiking to her father's art studio in Coconut Grove, Florida, on March 5, 1974, at the age of 17.

Investigators believe Amy's disappearance was involuntary and although no definitive leads as to the exact circumstances surrounding her disappearance have ever materialized, unconfirmed leads indicate she may have been abducted by a motorcycle gang (most likely the Pagans) and subsequently drugged, gang-raped and murdered.

Closure or need for closure (NFC), used interchangeably with need for cognitive closure (NFCC), are social psychological terms that describe an individual's desire for a clear, firm answer or peaceful resolution to a question or problem to avert ambiguity.

The term "need" denotes a motivated tendency to seek out information. The need for closure is the motivation to find an answer to an ambiguous situation. This motivation is enhanced by the perceived benefits of obtaining closure, such as the increased ability to predict the world and a stronger basis for action. This motivation is also enhanced by the perceived costs of lacking closure, such as dealing with uncertainty. A sense of closure is not usually possible with ambiguous loss, such as a missing person, and the hoped-for benefits, such as a sense of relief after the death of a person who inflicted harm, are not necessarily obtained. Because of this mismatch between what individuals hope will happen if they achieve closure and what they actually experience, the idea of getting closure has been described as a myth.

A police dog, also known as a K-9 (phonemic abbreviation of canine), is a dog that is trained to assist police and other law enforcement officers. Their duties may include searching for drugs and explosives, locating missing people, finding crime scene evidence, protecting officers and other people, and attacking suspects who flee from officers. The breeds most commonly used by law enforcement are the German Shepherd, Belgian Malinois, Bloodhound, Dutch Shepherd, and Labrador Retriever. In recent years, the Belgian Malinois has become the leading choice for police and military work due to their intense drive, focus, agility, and smaller size, though German Shepherds remain the breed most associated with law enforcement.

Police dogs are used on a federal and local level for law enforcement purposes in many parts of the world. They are often assigned to what in somenations is referred to as a K-9 Unit, with a specific handler, and must remember several verbal cues and hand gestures. Initial training for a police dog typically takes between eight months and a year, depending on where and how they are trained, and for what purpose. Police dogs often regularly take training programs with their assigned handler to reinforce their training. In many countries, intentionally injuring or killing a police dog is a criminal offense.

A search-and-rescue (SAR) dog is a dog trained to respond to crime scenes, accidents, missing persons events, as well as natural or man-made disasters. These dogs detect human scent, which is a distinct odor of skin flakes and water and oil secretions unique to each person and have been known to find people under water, snow, and collapsed buildings, as well as remains buried underground. SAR dogs are a non-invasive aid in the location of humans, alive or deceased.

Silver Alert is a public notification system in the United States to broadcast information about missing persons – especially senior citizens with Alzheimer's disease, dementia, or other mental disabilities – in order to aid in locating them.

Silver Alerts use a wide array of media outlets – such as commercial radio stations, television stations, and cable television – to broadcast information about missing persons. In some states (specifically Arizona, California, Colorado, Florida, Illinois, Maryland, New Jersey, North Dakota, Texas, Washington, Utah, and Wisconsin), Silver Alerts also use variable-message signs on roadways to alert motorists to be on the lookout for missing seniors. In cases in which a missing person is believed to be missing on foot, Silver Alerts have used Reverse 911 or other emergency notification systems to notify nearby residents of the neighborhood surrounding the missing person's last known location. Silver Alerts can also be used for children who are missing without being in danger or abducted.

Legal death is the recognition under the law of a particular jurisdiction that a person is no longer alive. In most cases, a doctor's declaration of death (variously called) or the identification of a corpse is a legal requirement for such recognition. A person who has been missing for a sufficiently long period of time (typically at least several years) may be presumed or declared legally dead, usually by a court. When a death has been registered in a civil registry, a death certificate may be issued. Such death certificate may be required in a number of legal situations, such as applying for probate, claiming some benefits, or making an insurance claim.

Stir of Echoes is a 1999 American supernatural horror film written and directed by David Koepp and starring Kevin Bacon, Kathryn Erbe, Illeana Douglas, and Kevin Dunn. Adapted by Koepp from the 1958 novel by Richard Matheson, it follows a working-class father in Chicago who, after being hypnotized by his sister-in-law, begins experiencing a series of disturbing visions connected to a missing intellectually disabled teenage girl.