The 46-year-old believes that he started to see ghosts of departed friends during visits to their grieving families, reported Contactmusic.
"When my friend (writer) Zalman King died, I went to comfort his widow, Pat. We were making a toast and I saw Zalman, who'd been dead for four hours, dance through the background. It was a trip," he said.
"Another dear friend of mine, Stephanie, her father died. I was at her house, and he walked past me on the stairwell one day... I know it was him. I just accept stuff like that and don't try to figure it out. I saw these people," he added.