truTV: Not Reality. Actuality.

John J. Oliver, Medium

John J. Oliver is one of America's premier mediums. The New York City resident has an extensive background in psychic police work, ghost investigations, and personal readings, and has worked in the field since he was a teenager.

Having presented thousands of seminars throughout the United States and Europe on how to develop ESP, he has also given over 13,000 readings to individuals from all walks of life. He has also, he says, been asked by police to assist them on "hundreds" of criminal cases. John has taught classes at the University of Virginia and the J. Sargeant Reynolds Community College's Continuing Education Department and once gave a special seminar at the United Nations. In Japan, where he is known as the "Action Adventure Psychic," he is the star of the "FBI: Psychic Investigators" television program.

In his spare time, John studies martial arts and is a black belt in tae kwon do.