This episode was based in part on the case of suspected serial killer, William Bradford. He posed as a photographer and police found pictures of Eva LaRue and her sister, Nika LaRue, in his home.
Eva LaRue's younger sister, Nika LaRue, makes an appearance as a reporter.
Erica Sikes: You do understand where I'm coming from, don't you?
Calleigh: I do, I understand you have a job to do just like the rest of us.
Erica Sikes: Thank you.
Calleigh: I also understand that your need for attention may have put these girls' lives in even more danger.
Erica Sikes: My need for attention?
Calleigh: Mmhmm. You didn't just report the news, you chose a salacious angle. It's more attention for you.
Erica Sikes: I'm a journalist, I want my attention on my stories.
Calleigh: If that were true, Sweet Pea, you'd be writing for a newspaper not playing your face on the evening news.
At the crime scene right after the theme song, Horatio talks to Calleigh. From one shot (where we see Calleigh from the front and Horatio's back) we see H putting on his sunglasses. However, in the next shot, H hasn't put on his sunglasses yet and he does a one-liner. We know Horatio puts on and takes off his sunglasses a lot, but it's physically impossible to do this.