CSI: Crime Scene Investigation: Season 7, Episode 24

7 - 24:

The CSI team learns that the miniature killer is a female and they manage to figure out who she is and interview her father. Before they can locate her, Sara disappears and Grissom finds a miniature of her death. Grissom tells the team about his relationship with Sara and they catch the killer, but she won't give up the location of Sara.