Sorry to just jump in here but I had a thought:
Would a new boyfriend of a month be upset to hear what DS had to say about the contents of the texts?
In this picture from the day after her disappearance he has fresh marks on his hands and arms including one on his finger that looks like a fingernail gouge.
http://www.orlandosentinel.com/news/local/orange/os-missing-michelle-parker-orlando-pictures,0,4477590.photogallery
Its 39 in the slide show if the link doesnt take you right to the picture.
His eyes are deep red not just bloodshot from crying.
In this article he says that MP had already let off the children when he got the text:
Mitchell said he last had contact with Parker after she dropped off her three-year-old twins at her ex-boyfriends home.
http://www.hlntv.com/article/2011/11/23/police-seek-info-missing-moms-necklace
Not sleuthing him but he has a least one prison looking tat.
Here is a picture of him looking fine which is later on since the command center is all set up.
He has recovered and looks normal which it would seem would be the other way around he would deteriorate as shock wore off and reality set in.
He looked rough that next morning and looks fine now. It doesnt even look like the same person.
http://www.cfnews13.com/article/news/2011/november/348322/Necklace-of-missing-mom-Michelle-Parker-may-be-key-evidence
He says
Me being who I am, I want to be there for her, and I feel helpless, and it's the worst feeling in the world."
Guess he just means me, being the gallant sort, me being the boyfriend, or maybe he works as a first responder?
I know, I know, DS is the logical and obvious choice as a perp but, imo, there is also another person who would have had an interest in what DS had to say.
Obviously LE has good reason to name DS a suspect based on, I am guessing, the neighbors surveillance footage.
DS just seems so vain that any negative from the PC would go right over his head.
All Imo