Julie Benz on Rita's death, in case there's any doubt:
So, let's set the record straight! Is Rita dead or not?
Rita's dead. She's long gone. I mean, when you lose that much blood, I don't think there's any hope for survival. What do you think?
Yeah, I wouldn't think so. I reviewed that last episode and, oh my gosh, I can't believe all the people still leaving comments on that post. A lot of them are saying it's a dream sequence. Are you getting that a lot from people? They're like, "Oh, it doesn't add up."
I'm getting people begging me to tell them it was dream sequence. I'm like, "I hate to tell you this, but it's true. It's real. Rita died and I'm dead." I would love it to be a dream sequence, but I'm released from my contract now. So, it wasn't a dream sequence.
Hopefully, that will appease all of the people still hoping for the dream sequence.
No. I think they're still going to hope for it. I do go on the message boards a lot and look at what people write, and it's always fun to hear their theories and philosophies. Somebody said that they thought Rita committed suicide. Then, there was a theory that Dex snuck in and killed Rita, which made me laugh. To set the record straight, Rita's dead and the Trinity Killer killed her.
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http://www.aoltv.ca/2010/02/12/julie-benz-talks-dexter-desperate-housewives-and-uncorked)