confronting a killer. in february of 200914-year-old amber du bois never returned home from school. while shorts were investigating the murder of chelsea king, the suspect in there led them to amber s remains. john gardner pleaded guilty to both murders in a plea deal where he avoided the death penalty. both families confronted gardner as a sentencing hearing. amber s mother went one step further. the story of both murders is the focus of tonight s two hour date line season premier. in broad daylight. no parent could ever imagine losing a child this way and then confronting the child s killer. this is one of the most dramatic moments in a story that gripped a san diego area for, you know, quite a while now. but that afternoon was extraordinary. it happened in front of a san diego jail.