The UN Security Council is currently meeting and Russian Ambassador Churkin read what he claimed was a letter from deposed Ukrainian President Viktor Yanukovych okaying and arguably authorizing the Russian occupation of Crimea. (More information here.) To the best of my knowledge, we have not seen Yanukovych saying that publicly. The last we saw him on TV he denounced his ouster, said it was illegitimate (and of course fled into Russia) but, I believe, said clearly that Russian military involvement would not be acceptable.
I would strongly assume that if the Russians could get him on camera to say that they would.
I'm not sure I'd make too much of this yet. Perhaps we'll see him shortly. Perhaps my information is out of date and he has appeared in public to say this. If so, please let me know.