CNN Anderson Cooper 360 May 31, 2013 00:36:00
Were telling her because we thought she was so upset and missed skyler so much, and to find out she murdered her, it makes me sick. >> reporter: it's not just their behavior that's so troubling. rachel actually left for church camp the day after the murder. her family issued a statement to skyler's parents. it reads in part, we are at a loss for words to comfort your pain. we were shocked to learn of our daughter's involvement in skyler's death. we know her actions are unforgiveable and inexcusable. so why did they do it? why kill skyler? the reason rachel's given is simple and sickening. >> b...