Who was Jack the Ripper, the infamous murderer who killed seven London sex workers in 1888? Includes the views of crime experts and features graphic photos of the murders. Also offers a new suspect--an American! Former FBI profiler John Douglas explains how the FBI would approach solving the serial killings.

Inspiration can come from just about anywhere, as Nate finds out when he explores how Islamic art influenced MC Escher’s intricate geometric drawings, where Edvard Munch’s famous painting “The Scream” came from, and how Paul Klee came up with some of his best-known work.

New projects are advancing slowly, moving hardware into the testing phase with new designs and new capabilities. The next 12 months will see an intense rise in flight tests, demonstration launches, and high priority flights--some are on time, others are not. We check the flight status of some of this new hardware.

WATER RUN OFF IN CITY PARK, CLEAN WATER EFFORTS IN CAMBODIA, and BICYCLE TRANSPORTATION

INVESTIGATING AND TESTING A MULTI-STAGE CHINESE ROCKET.

Andrei Chikatilo, a married man, teacher, and member of the Communist party, began a life of serial child molestation, rape, and murder in the 1970s. He picked up runaways, sex workers, and children throughout the 1980s, killing and mutilating them in the most horrible ways, all to satisfy himself sexually. After several arrests, he was finally convicted and executed in 1994.

In 1983, after he confessed to killing 100 women, Henry Lee Lucas became America's most notorious serial killer. Later, Henry was identified as the killer of record in 214 cases. But did he really commit those crimes? Was Henry a serial killer or a serial liar? To find out, we talk to former Texas Ranger Bob Prince, who describes his work on the Henry Lee Lucas Task Force; reporter Hugh Aynesworth, who broke the story about the validity of Henry's confessions; and former prosecutor Vic Feazell, who blew the whistle on Henry.

As a child, he was playful and loved music, but he began to change after he saw his cousin commit murder right in front of him. This portrait of Richard Ramirez follows his descent from peeping tom and expert burglar to one-man crime wave. At age 25, Ramirez was arrested for five robberies, 14 burglaries, four counts of sodomy, three acts of forced oral copulation, two kidnappings, three lewd acts on children, six rapes, and 13 murders.

The shotgun murders of Jose and Kitty Menendez, on August 20th, 1989, had law enforcement officials stumped: who would have killed the wealthy executive and his wife in their posh Beverly Hills mansion?

A profile of the gay "gigolo" who became one of the most wanted killers in America when he left a trail of murder from Minnesota to Illinois and New Jersey before killing fashion icon Gianni Versace in Miami and dying by suicide in 1997. Friends, classmates, and others who knew Cunanan tell us what they knew about the serial killer.

Who was Jack the Ripper, the infamous murderer who killed seven London sex workers in 1888? Includes the views of crime experts and features graphic photos of the murders. Also offers a new suspect--an American! Former FBI profiler John Douglas explains how the FBI would approach solving the serial killings.

The story of serial killer Pedro Alonzo Lopez. After being violently raped in prison when he was 18 and killing three of his assailants, he launched an 8-year killing spree that claimed the lives of more than 100 girls in Peru.

For almost 20 years, Theodore Kaczynski conducted a campaign of terror across the U.S. by sending homemade bombs from his one-bedroom cabin in Lincoln, Montana.

Andrei Chikatilo, a married man, teacher, and member of the Communist party, began a life of serial child molestation, rape, and murder in the 1970s. He picked up runaways, sex workers, and children throughout the 1980s, killing and mutilating them in the most horrible ways, all to satisfy himself sexually. After several arrests, he was finally convicted and executed in 1994.

In 1983, after he confessed to killing 100 women, Henry Lee Lucas became America's most notorious serial killer. Later, Henry was identified as the killer of record in 214 cases. But did he really commit those crimes? Was Henry a serial killer or a serial liar? To find out, we talk to former Texas Ranger Bob Prince, who describes his work on the Henry Lee Lucas Task Force; reporter Hugh Aynesworth, who broke the story about the validity of Henry's confessions; and former prosecutor Vic Feazell, who blew the whistle on Henry.

As a child, he was playful and loved music, but he began to change after he saw his cousin commit murder right in front of him. This portrait of Richard Ramirez follows his descent from peeping tom and expert burglar to one-man crime wave. At age 25, Ramirez was arrested for five robberies, 14 burglaries, four counts of sodomy, three acts of forced oral copulation, two kidnappings, three lewd acts on children, six rapes, and 13 murders.

The shotgun murders of Jose and Kitty Menendez, on August 20th, 1989, had law enforcement officials stumped: who would have killed the wealthy executive and his wife in their posh Beverly Hills mansion?

A profile of the gay "gigolo" who became one of the most wanted killers in America when he left a trail of murder from Minnesota to Illinois and New Jersey before killing fashion icon Gianni Versace in Miami and dying by suicide in 1997. Friends, classmates, and others who knew Cunanan tell us what they knew about the serial killer.

Who was Jack the Ripper, the infamous murderer who killed seven London sex workers in 1888? Includes the views of crime experts and features graphic photos of the murders. Also offers a new suspect--an American! Former FBI profiler John Douglas explains how the FBI would approach solving the serial killings.

The story of serial killer Pedro Alonzo Lopez. After being violently raped in prison when he was 18 and killing three of his assailants, he launched an 8-year killing spree that claimed the lives of more than 100 girls in Peru.

For almost 20 years, Theodore Kaczynski conducted a campaign of terror across the U.S. by sending homemade bombs from his one-bedroom cabin in Lincoln, Montana.

Andrei Chikatilo, a married man, teacher, and member of the Communist party, began a life of serial child molestation, rape, and murder in the 1970s. He picked up runaways, sex workers, and children throughout the 1980s, killing and mutilating them in the most horrible ways, all to satisfy himself sexually. After several arrests, he was finally convicted and executed in 1994.

In 1983, after he confessed to killing 100 women, Henry Lee Lucas became America's most notorious serial killer. Later, Henry was identified as the killer of record in 214 cases. But did he really commit those crimes? Was Henry a serial killer or a serial liar? To find out, we talk to former Texas Ranger Bob Prince, who describes his work on the Henry Lee Lucas Task Force; reporter Hugh Aynesworth, who broke the story about the validity of Henry's confessions; and former prosecutor Vic Feazell, who blew the whistle on Henry.

As a child, he was playful and loved music, but he began to change after he saw his cousin commit murder right in front of him. This portrait of Richard Ramirez follows his descent from peeping tom and expert burglar to one-man crime wave. At age 25, Ramirez was arrested for five robberies, 14 burglaries, four counts of sodomy, three acts of forced oral copulation, two kidnappings, three lewd acts on children, six rapes, and 13 murders.