'The Killing' Season 2: Michelle Forbes returns, and we'll really find out whodunit

michelle-forbes-killing-ep9.jpgAfter last season's non-resolution on "The Killing," the AMC series will, we're promised, tell us who murdered Rosie Larsen in Season 2. And Rosie's mom will be there to find out.

Michelle Forbes, who scored an Emmy nomination for playing grieving mother Mitch Larsen last season, will return to the show in 2012, TVLine reports. Executive producer Veena Sud also promised a resolution to the case, which infamously did not come in the first-season finale.

"We will solve the investigation of who murdered Rosie Larsen -- all will be revealed -- and there will also be a second case that emerges," Sud tells the site.

The show will also incorporate two new characters into Season 2: Alexi, a 19-year-old "bad boy" who grew up in Seattle's foster system, and Lt. Carlson, a politically savvy cop.

"The Killing" is likely to premiere in the spring.

Photo/Video credit: AMC