To dispel this myth and to make sure travellers wouldn't avoid travelling through their countries, many third world countries launched a campaign asking members of the public and transient westerners if they were the victims of organ theft. To this date, no-one has stepped forward.
Source: National Kidney Foundation.
Corpse in the chimney: True.
The creepy sewer creatures: True.
These aren't "creepy sewer creatures", just rats, and it's actually quite common for rats to emerge from toilets situated on the ground floor of a building on a main road.
Human grease vampires: N/A
PCP cannibalism: True.
In 2002, the rapper 'Big Lurch' ate a womans lung under the influence of PCP.
The Ice Woman: True.
Jean Hilliard, 19, suffered a head injury in 1981 and spent 6 hours unconscious in the snow. She was pronounced dead, but later thawed-out and regained consciousness. Although it's not uncommon for a patient suffering extreme hypothermia to survive, Jean Hilliard was considered very lucky to have survived at all.
Killer in cops clothing: True.
Ted Bundy's MO.
And before one of you suggests it, yes, I got most of it from snopes. So sue me.