Unsolved History Season 2

In 1962, Marilyn Monroe was found dead in her California home. While the coroner ruled her death a probable suicide, there was minimal investigation and rumors of conspiracy and cover-up persist to this day. Find out how Marilyn Monroe really died.

The Salem Witch trials of 1692 were one of the darkest periods in early American history. Over 100 people were imprisoned and 37 were killed because of their purported involvement with witchcraft. Find out what caused the hysteria.

After 40 years, the assassination of President Kennedy remains unsolved. Government investigations have provided the American public with few answers. Dramatic demonstrations of the events in Dealey Plaza shed new light on the web of conspiracy theories.

On February 14, 1929, four men armed with submachine guns cut down seven mobsters in Chicago. Ironically, this famous mob event spawned the Chicago crime lab, introducing ballistics, polygraph, chemical analysis and forensic pathology to police work.

An Aztec sacrifice of 20,000 people over a period of four days in 1411 is examined. The sacrifice consisted of a sacrificial priest cutting the person's skin beneath the rib cage, reaching up and cutting the arteries and veins attached to their heart and pulling it out. Then the body was pushed down the stairs of the altar. After an examination, it is proven that this many people could be sacrificed in such a small amount of time.

Before he was assassinated by John Wilkes Booth, President Lincoln was the target of at least five other assassination conspiracies. Using forensic analysis and reenactments, each of these forgotten plots are examined.

Experts use forensic techniques to translate and verify what Nostradamus ""really"" predicted. Fact is separated from fiction as it relates to the terrorist attacks on September 11, 2001.

On July 20, 1944, members of Hitler's General Staff detonated a bomb designed to kill their leader and his henchman. The bombing was to lead to the overthrow of Nazi Germany and an early end to the war. Find out why this famous coup failed.

In 1968 as Senator Robert F. Kennedy left a political rally in a Los Angeles hotel, shots rang out leaving him mortally wounded. Who really fired the fatal shot that killed Senator Kennedy? Was it a lone gunman, a young Palestinian, named Sirhan Sirhan?

After World War II almost 30,000 war criminals escaped from Europe. Was Dr. Mengele part of a Fourth Reich dedicated to evil plots to restore Nazi power? The truth is that Mengele, like many ex-Nazis, led a pathetic hunted animal existence after the war.

An ancient story tells us that a mighty Greek armada of a thousand ships sailed across the Mediterranean Sea to wage war on Troy. Bent on vengeance for the abduction of the beautiful Helen by the Trojan prince Paris, the Greeks lay siege to the great city.

The myths surrounding the Ninja, the mysterious elite fighting force of feudal Japan, are explored

The Korean Airlines 747 shot down in 1983 is investigated using 21st century technology and science.

Forensic techniques are used to examine the disappearance of D.B. Cooper, who parachuted from an airplane in 1971 with a stolen $200,000.