Leaving the store, Monk mentions to Natalie that as Ronald Webster lived a rather quiet life, the theory that the alligator attack was premeditated homicide looks more compelling - for one thing, skinny dipping wasn't something that fit his personality. Also, his car was never found near the crime scene, and Monk figures that they'll find Webster's Buick Lucerne either near his house or near the store. Monk deduces that the crime scene at the beach was entirely staged, and Webster had to have been killed somewhere else.