References Rex Stout's Nero Wolfe novel "Some Buried Caesar", except the brother of a thoroughbred horse replaces the brother of a thoroughbred bull.
Last film/TV appearance of Melvin Belli He was a prominent United States lawyer, author, and actor known as "The King of Torts" and by insurance companies as "Melvin Bellicose".
The title refers to the common expression "straight from the horse's mouth" which means the information came from the highest authority and originated from those interested in information on horse races.