This is really good so far. I love your writing 'voice', the mystery behind the MC, and Carter, of course!
I'll admit I was slightly disappointed that Carter wasn't one of the LIs (I assumed he was cos he was first on the list of characters, which I first thought was a list of LIs). I love me some older grizzled man (and a cop to boot!), but ehh, I'm sure the actual LIs will be great! :D
Can't wait to read more. :)