A report on aphrodisiacs, including one man's claim that chocolates improved his sex life; and theories involving a reported secret government ray gun. Also: a family finds new evidence in a son's 1977 death.

A profile of a Salem, Mass., woman who uses her alleged psychic powers to help solve crimes. Other reports include the 1994 murder of a DEA agent; the story behind a New Yorker's 1991 lottery win. (Repeat) Wanted: Augustin Mendoza Wanted: Yessica Mendez Special Bulletin: Unidentified Subject

Probing NASA findings of life on Mars. Other reports include an update on a 1988 construction-site fire in Kansas City, Mo.; possible foul play in the 1995 death of a Colorado man. Lost Heir: Owen Walker Lost Heir: Temperee Hawkins Wanted: Tony DeCompo (Wanted for Questioning) Update: Lost Love - Jeff Linn Update: Lost Love - Candice & Sharina Berry

Reports include the suicide of actress Margaux Hemingway, granddaughter of Ernest Hemingway; a Los Angeles man's search for his biological mother; the hunt for the killers of two Mercer College students. Lost Love: Sean Moore Wanted: Jonathan Kern Update: Wanted - Albert Leon Fletcher

A report on incidents of sleepwalking; updates on the disappearance of two young sisters, and a man's search for his siblings. Also: a woman believes that her twin sister, who supposedly died at birth, may still be alive. Missing: Lance Guevarra Missing: Jesus De La Cruz Wanted: Karen Pelletiere Missing: Susan Hurley Harrison Lost Love: Lois Cappoziello Update: Arson - Kansas City Explosion

Included: a profile of a so-called ""psychic spy"" in the Government's Stargate program; a report on cloning the dead; the search for a nanny wanted for questioning in Los Angeles. Wanted: Maria Rosa Hernandez Wanted: Melvin Luther Wilson

A ninth season of stories begins as amateur researchers find similarities in the cases of the Zodiac killer and the Unabomber; and a bizarre West Virginia case involves multiple identities--and murder. Also: two Macon, Ariz., college students are brutally murdered. Wanted: Andre Gerald Wilson Wanted: William Jordan Missing: April Gregory & Kristin Smart Update: Wanted - Carl & Mary Dennie

Probing NASA findings of life on Mars. Other reports include possible foul play in the death of a Colorado man; the hunt for a woman's alleged captor; a viewer tip leading to a suspect's arrest in Jackson (Miss.). (Repeat)

Examining several theories about who gunned down rapper Tupac Shakur in Las Vegas in September 1996. Other segments involve the search for suspects in the abduction of a 5-6ear-old girl; and the armed robbery of a woman and her grandson. Also: two women's search for a long-lost brother. Links: Video Clips of the Tupac Shakur segment / 2Pac Mansion - Unsolved Mysteries article Unexplained Death: Tupac Shakur Missing: Therese Rose Walsh

Segments include a man's 1985 experiences in a French hospital that led to his becoming a minister; another man's search for a good Samaritan who saved his life on the day his child was born; a toddler's 1993 abduction. Wanted: Jimmy Ray Legate Wanted: Michael Wilburn Wanted: Unidentified Subject Lost Love: Steve Newton Update: Wanted - Richard Cepulonis & Karen Walters

Segments on heroic pets; a Phoenix woman's efforts to find her kidnapped daughter; a death on a hotel balcony; the search for a mail bomber who terrorized New York City area residents. Link: Missing: Zenith Elaine Helton / Transcript of segment Wanted: Jimmy Wayne Pierce

Examining the human-like characteristics of an unusual primate; the story of a missing reporter who disappeared in 1996; the search for a suspect in Mexico; and news of a so-called aphrodisiac ""wonder drug.""; final appeal of Tommy Ziegler. Missing: Susan Walsh

A profile of a family that claims to be tormented by unseen forces, including ghostly visions, electrical phenomena and mysterious medical troubles; and so-called sightings of MIBs, strange and furtive ""Men in Black"" who travel in threes, speak in unison and are said to be aliens. Also: the search for a suspected swindler in Mexico. Wanted: Maria Socorro de Rodriguez LaPine Wanted: Mark Gagliardo

A talk with Cokeville, Wyo., residents whose lives were spared during a 1968 hostage crisis at an elementary school, and with patients of a doctor schooled in the ancient Chinese medical practice known as Qi Gong. Wanted: Samuel Lee Glover & Marshall Kirkpatrick Wanted: James ""Whitey"" Bulger Missing: Le-Zhan Williams

Repeat segments include: amateur researchers find similarities in the cases of the Zodiac killer and the Unabomber. Other reports include a Phoenix teenager who claims that she was miraculously healed following a 1993 accident; an insurance scheme; missing college students. Wanted: William Jordan

Segments include a case of reported vampirism involving the murders of a Florida couple; the death of a USC film student in Tijuana; suspicions of an insurance scam in Mexico. Missing: Ceara O'Connell

Included: the 1966 death of rock star Bobby Fuller, who some believe was murdered; and an update on a bizarre West Virginia murder case from 1994. Also: people who have been robbed in their homes form a coalition. Wanted: David Coleman Update: Wanted - William Cooper

A Halloween-themed profile of a Salem, Mass., woman who uses her alleged psychic powers to help the police solve crimes. Other reports include the 1994 murder of a DEA agent in Phoenix; the story behind a New Yorker's 1991 lottery win. Missing: Meriah & Sabria Widboom Wanted: Yessica Mendez Wanted: Augustin Mendoza Update: Lost Love - Tim Harrell

Included: the 1966 death of rock star Bobby Fuller, who some believe was murdered; an update on a bizarre West Virginia murder case from 1994. Also: people who have been robbed in their homes from a coalition to catch the intruders. (Repeat)

Reports on a daring jail escape; a 1986 hostage incident at a Cokeville, Wyo., elementary school; the death of an international financial consultant in a fire at a Washington, D.C., townhouse; and an adoptee's desperate search for her biological parents. Unexplained Death - Lynn Amos Special Bulletin - Lost Love - Regina Davis Lost Love: Dave & Christie Carlsen

Reports on the suicide of actress Margaux Hemingway, granddaughter of Ernest Hemingway; the hunt for the killers of two Mercer College students; and the search for a con man. Also: a Geneva, N.Y., man receives a letter (found in a bottle) that he'd written. (Repeat) Wanted: Jonathan Kern

A report on the use of bee venom to treat the crippling effects of multiple sclerosis; an update on an Austrian woman's search for her adopted brother in America; an engineering lab's challenge to arguments in a Darien, Conn., rape trial. Link: Wheeling Police Department: Santos Murder Unexplained Death: Jamie Santos

Reports include one man's crusade to reinvestigate the 1994 death of rock star Kurt Cobain. Also: a controversial medical diagnosis--by a dog; a 1975 shootout at a furniture store; and a 1995 missing-persons case. Links: E! Online News: Who Killed Kurt Cobain?

Repeat segments include: incidents of sleepwalking; a woman believes that her twin sister, who supposedly died at birth, may still be alive; the abduction of a toddler; two brothers investigate their mother's puzzling disappearance. Also: an update on a construction-site fire in Kansas City, Mo. Wanted: Karen Pelletiere Missing: Jeanette Theresa Federico

Reports on so-called sightings of MIBs, furtive ""Men in Black"" who travel in threes, speak in unison and are said to be aliens; and a Canadian man's puzzling journey, ending in his death. Update: Dennis Keith Smith