I was just looking at the fabulous timeline put together by billandrew when I came across the series of texts from November 30 through December 8, 2011. This is where there is talk about the iphone that LB was using as an ipod.
It starts on November 30 with DM alerting CN that he is going to be talking to LB about cell phones. He tells CN that he has the serial number of the phone LB uses.
In the midst of DM/CN text conversation (9:42 pm) there is an incoming text from LB saying "Dumped out my purse. Not there

"
DM texts back at 9:52 pm "Going to search truck and my driveway."
Then at 2:03 am on Dec 1 he texts: "Not here. Will check in daylight. Think you have it."
LB texts him 3 times between 10:44 am and 10:48 am:
"I'll check again fml."
"It has to be floating about the car. Def not here :s"
"Let me know if u find it. I miss my music it's my coping device."
DM texts back at 12:31 pm: "I found it!"
From this series of texts, I suggest the following might be inferred:
1. DM spent time with LB
before he texted CN and let her know that he was going to see LB. He led CN to believe that it hadn't happened yet and that he was being a good boy and letting her know in advance.
2. DM took LB's ipod/phone and then
pretended to look for it while LB freaked out that it was missing. Already at 9:40 pm on November 30, he tells CN that he got the serial number of LB's phone. I suggest he got that number because he took her phone.
Now is it AM's phone? I don't know, but it would not surprise me at all if it really
is a phone that LB's dad found in the park and gave to her. In the early morning hours of December 8, there is a long text conversation between LB and DM in which she seems to be working hard to persuade him to have sex with her. You can sense desperation and yearning here. DM is putting her off and then says: "Tell you what, tell me the truth about Andrew's phone & I will reward your honesty." And LB replies: "My dad found it in the park. Fixed it and said I could use it. It was blank when I got it." She seemed desperate enough that she probably did tell the truth and hoped for her "reward".
I just thought the whole series of texts gave some insight into how manipulative DM could be. He had LB believing she must have lost her phone. He had CN believing he was only going to spend time with LB because he had to get AM's phone back. He also had CN believing LB was a liar and a thief - feeding her animosity.
All MOO.