Is May 16th too long to wait for your first look at what CASTLE executive producer Andrew Marlowe is characterizing as an “explosive” third season finale? Never fear, the TV Addict is here. Here that is with your first look at “Knockout,” the highly-anticipated season ender that will see Beckett’s investigation into her mother’s death reactivated when her only lead — professional hitman Hal Lockwood — stages a spectacular escape that ignites a manhunt which uncovers evidence of a deeper conspiracy involving a mysterious figure with (gasp!) law enforcement connections. More first look photos of which can be seen after the jump.