The second-floor space next to the AMC Dine-In Theater, at 13455 Maxella Ave Suite 270 in Marina del Rey, has sat empty for quite a while.  In another lifetime, I believe it was home to Ra Sushi.  But now it appears to be under construction again.  A sharp-eyed reader (Thanks Jennifer!) spotted the name of the new eatery on the notice of nonresponsibility taped to the front door.  The notice names the new restaurant as NAMOO Korean BBQ.  I don’t have any information on this business, so if you know more, pass it along…