Castle has had a stupendous season 3 and Castle and Beckett have grown closer than ever. Tonight’s finale will put everyones cards on the table, but it will also bring the death of a series regular that has been on the show since the beginning.
- Kate Beckett’s investigation into her mother’s death is reactivated when Hal Lockwood (guest star Max Martini, “The Unit”) – a professional hitman with knowledge of Beckett’s mother’s murder – stages a spectacular escape during a court hearing.
- As police launch a manhunt for Lockwood, Castle and the team uncover evidence of a deeper conspiracy involving a mysterious figure with law enforcement connections who is linked to both Lockwood’s escape and the killing of Johanna Beckett.
- The search for Lockwood and the quest to identify his co-conspirator leads to a shocking and deadly conclusion, on the Season Finale of Castle
So, who will it be fans? Hit the comments with your predictions 
Source: ABC