The villainous Beverly Houle
Beverly Houle (Melinda Dahl) is the main villainess from "The Bones that Weren't," episode 6.05 of Bones (airdate November 4, 2010).
Beverly Houle was introduced as a street performer who, along with fellow performer Johnny Wizard, was interviewed at their surroundings by Dr. Temperance Brennan and Seeley Booth. This was regarding the murder of Robert Pearson, a ballet dancer turned street performer, and according to both Beverly and Johnny, Robert was well loved. Prior to their encounter, Brennan and Booth visited dancer-turned-instructor Cynthia Rinaldi, who voiced her bitterness towards Robert due to the fact that she blamed him for her career ending ankle injury.
An interview with Tyler Milford, who poses as a bronze statue of Shakespeare, revealed that Robert was a pickpocket, and after a female handprint was discovered, it led to both Cynthia and Beverly being suspected and appearing at the Jeffersonian for interrogation. Though Cynthia was a strong suspect due to her anger at Robert, Booth correctly deduced that the killer was none other than Beverly, who was Robert's partner in the robberies. However, Beverly learned that Robert was cheating her, leading to the villainess confronting her partner at a construction site and stabbing him to death with a trash picker.
Both women were made to wait in a room that had an immense amount of air conditioning to suck out the room's moisture, while each one had a glass of water in front of them. Beverly took a drink first, which allowed Booth to get her DNA, and after Booth showed her the handprint, the evil Beverly gave a panicked expression, which marked her reveal. Beverly was arrested (off-screen) afterwards.