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.

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.

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.

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.

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.

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.

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.

A talk with Cokeville, Wyo., residents whose lives were spared during a 1986 hostage crisis at an elementary school, and with patients of a doctor schooled in the ancient Chinese medical practice known as Qi Gong.

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.

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.

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.

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.

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)

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.

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.

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.

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.

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)

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.

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)

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.

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.

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.

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.

Authorities search for a suspect in the rapes of two Texas A&M students; a woman credits her medical recovery to a visit from a ""healing UFO""; and a former reporter tries to locate the woman she recently discovered to be her sister. Also: a probe of why serial killers murder.

Reports of cyberstalkers using the anonymity of computers when threatening victims; a youngster's hypnosis-induced account of a past life as a soldier in the Civil War; the murder of a star lacrosse and soccer player.

American and Russian archaeologists discover the bones and weapons of ancient women warriors; Residents of Oakville, Washington, report mysterious gooey blobs that rained down from the sky; a comatose man experiences what doctors call a ""miracle survival""; a mother searches for the murderer of her son.

Reports on a possible link between the bombing in Atlanta during the Summer Olympics and a series of bombings in Spokane, Wash.; the search for a Baltimore con man; the murder of a South Carolina beauty-shop owner.

Segments include a man's 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; and a boating accident that injured a woman. Also: the arrest of a fugitive and his wife in St. Paul (Minn.). (Repeat)