Carnival Killer

When the owner of a travelling carnival is found murdered, Dale, Pat, and Roy help Sheriff Blodgett investigate what happened. It doesn't take long for them to discover the prime suspect: a young cowboy who had a bullwhip act in the carnival who was wooing the carnival owner's daughter. However, after talking to the young man, Roy suspects that he might be framed and that there were several people employed by the carnival that had grudges with the owner, and has to figure out who is the actual murderer.