Edited sentence: 90 percent of the sightings are coming from people who claim no drug use and are free of psycological problems.As of yet none of the above has been able to explain the reason why people all over the world describe the shadow people nearly exactly the same every time, this makes one believe all of the above have little to do with these sightings.Referenced at www.com Heidi Hollis' book "the secret war" and many many other places.org www