Denny Burkholder, Celebrity Deathwatch: John Wisniski Sr., Pro Wrestler Johnny Valentine, 72, in Celebrity Deathwatch Mailing List, slick.org, 24 aprile 2001. URL consultato il 21 marzo 2009 (archiviato dall'url originale il 10 gennaio 2011).
«He slipped into a coma, coming out of it once when his wife was singing. He sang along until he fell into the coma again.»