Board Thread:Questions and Answers/@comment-7411320-20130324045348/@comment-60.226.65.210-20140705134553

He more than likely only killed Rita to get some form of revenge against Dexter, he would obviously preferred to have Dexter himself, but it's clear there was no time for that, so he took her life instead. But one thing I am really wondering is if Trinity told Rita about Dexter and his killing ways, and if Rita was to ever see the true Dexter before she dies. One thing we'll never know I guess.