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Ybarra, 35, is serving a life sentence at Chillicothe Correctional Center in Missouri after she was convicted of multiple charges, including second-degree murder, harassment and enticing or attempting to entice a child. Though she never previously spoke about the case, Ybarra opens up for the first time in an exclusive interview with David Scott in the season four premiere

In his first-ever television interview, killer Thomas Gilbert, Jr. discusses the murder that shook New York’s elite. The Princeton-educated "golden boy" became a tabloid obsession when he shot his father after his $1,000 allowance was cut off. But in this unique installment of Interview With a Killer, Gilbert appears to be a far cry from his once golden upbringing. Court TV's David Scott explores his long history of mental illness and the privileged pressure cooker that shaped his downfall.

She’s one of the most camera-friendly killers in true crime history. A glamorous Texas social climber turned convicted black widow. Celeste Beard Johnson has done many television interviews, flashing a smile as she proclaims her innocence and pleads for sympathy. But she’s never been questioned by David Scott. This interview is unlike any that she’s ever done. In this special episode of Interview With a Killer, Court TV's David Scott reveals the real Celeste — cunning, calculating, and deadly.