They're HERE at Fox on Demand! The titles of the clips are "Disturbing? Fascinating?", "He has Horns", and "Preliminary Findings". They're under Video Extras and Season 4 (miscategorized).
When a famous crossword puzzle master is found in an urban fracking site, the team investigates the lives of his fellow puzzle-obsessed players. Meanwhile, “squintern” Daisy (guest star Carla Gallo) wants the team to be in the delivery room with her for the birth of her and Sweets’ baby. - See more at: http://bonesspoilers.blogspot.com/search/label/The%20Puzzler%20in%20the%20Pit#sthash.ZfOHWOW2.dpuf