ABC's "How to Get Away with Murder" will not premier until Sept 24, but the series will drop a major bombshell in its first episode. After waiting an entire season to discover who killed Sam and Lila Stangard, viewers can expect the latest murder to be solved much faster.

In the season one finale, Wes' girlfriend and suspected murderer Rebecca was killed in the basement of Annalise's home. The body was discovered by Annalise and Frank, who both swore they had nothing to do with her death. Unfortunately, Frank's role in Rebecca's death is questionable at best after viewers learned he was the one that killed Lila after all, Entertainment Weekly reported. Fans of the show will find out who killed Rebecca in the first hour of the shows new season!

In addition to the news that viewers will not have to wait an entire season to discover who killed Rebecca, "X-Men" star Famke Janessen will be joining the show. Janssen has been cast for a multi-episode arc, but ABC declined to give any further details on her character. Apparently, Janssen will be playing a brilliant, revered defense attorney who takes her job very seriously, according to TV Line.

ABC's "How to Get Away with Murder" returns Thursday, Spet 24 at 10 p.m. ET.