OK this is a little strange.
Click this link:
http://www.nadelarc.com
After the intro, click portfolio.....what do you see?
That's not the 5th & Columbia Tower. That's a residential tower designed for the corner of Wilshire & Hobart in metro L.A. If you look under residential projects on the same website, it's listed there.
It's also listed on in the L.A. Metro thread, under proposed projects:
http://forum.skyscraperpage.com/showthread.php?t=142650
I dunno, I found this a little odd.