To enter the discussion, ah, I'll put in my two cents. I'm an Australian fan, so, we've only just had Burn Out, and that was two weeks ago. *Growls the swimming in Melbourne.* Maybe we might get back on track soon. That being said, as usual, I don't get to see the season finale until October/November, unless channel nine pulls what it did with Grave Danger and gives the finale to us at the start of the next year. *Sigh.*
So, you get where I'm coming from. I've barely met the MCSK, but, that hasn't stopped me from theorising. As for what I bring to this actual debate? I'm one of the few Marc Vann fans, and, in turn, I'm a steadfast Ecklie lover. Written prompt fanfiction work for the character for three years now, so, the end of season 7 has me worried.
The main theories for who dies though, still, are Lady Heather, and then Hodges, and, possible, Bobby. I could get it if they pulled out one of the other random techs, like the handwriting analysis dude, or the secretary, but, somehow, that wouldn't have enough oomph. David, doesn’t seem likely, even though, I guess, they built a bit on his getting engaged and all that.
I don't, after thought, think it would be Ecklie either. Neither do I think Ecklie is the MCSK, even if that might not have come into thought. Seriously, three years inside the guy's head, it's weird. He's smart, smarter than he lets the rest of the CSI lab believe, because he can do wily, conniving things, and get away with them. He has good reasoning, like trying to clear the $1 mill for Nick way back when, and he can be helpful at times. The guy must have had something bad happen to him, to make him such an angry, mean person, but, he's not material for something such as the MCSK. Ecklie, is someone who describes himself as a personal servant, and, yes, even though it's familiar to us crime show buffs, high powered people going loopy, I don't reckon that's him. He lives for his work, and, now that he's in a position of power, I don't see why he'd throw it away.
I get why Ecklie’s been absent this season though. Over the course of the 7th season, Marc Vann has been in guest starring sports for the shows NCIS, Dirt and Standoff. Then there’s the movie Man Maid he’s in, which, I guess, required some involvement, even if it did wrap up production a while ago. That bundled together, gives me a plausible reason why we haven’t seen much of Ecklie, a fact which I really do regret, but, not enough reason for me to jump to OMG he could be the MCSK.
As for Sara disappearing? *Dies.* I’m a GSR girl, through and through, so, this, really, scares me. Ecklie though, if he got killed, or was the killer, I honestly wouldn't jump ship, but I would consider it, and go and paint myself a new boat.
And I also think that it will definitely take an impact on the team. 
