CHICAGO (CBS) — Famed Chicago ghost hunter Richard Crowe has died. He was 64 years old.

Crowe’s sister, Joann, posted on his Facebook page that he died on Wednesday of complications from pancreatic cancer.

Crowe was the leader of the Chicago Supernatural Tours series of bus tours. His Web site he organized the first ghost bus tour in the world after getting his Master’s degree from DePaul University in 1973.

He has also led ghost boat cruises, and has appeared on TV programs ranging from “The Oprah Winfrey Show” to “Unsolved Mysteries” to talk about haunted places, ghosts and other unexplained and supernatural mysteries.

Former WGN-720 AM radio hosts Steve King and Johnnie Putman wrote on their blog that in their 27 years hosting a late-night radio show, “Richard was one of our most requested guests. Every year, starting around September, the calls, letters, texts and E-mails would begin. ‘Is Richard Crowe going to be on with you this Halloween?’ ‘When is Richard Crowe going to be on?’ ‘Have you announced the date of Richard Crowe’s appearance, yet?’”

King and Putman wrote that “It was largely due to Richard Crowe that ‘Resurrection Mary’ became the legend she is today, a legend strong enough that even local police officers would call in with new sightings to add to Richard’s files.”

Crowe will be buried at Resurrection Cemetery.

The Sun-Times Media Wire contributed to this report.