When you watch Beauty and the Beast Season 3 Episode 13 online you'll see how far one man will go to get revenge for crimes which happened in the past. Liam continues to torture Vincent by digging up bodies of his past victims and trying to implicate Vincent in their murders. Vincent realizes he needs to come clean about what he is to the detectives who are on his case, but Cat isn't completely on board; though she soon realizes they have no other choice. At the hospital Liam reveals his beast side to the detectives who help Vincent and Cat come up with an idea to fake Vincent's death to trick Liam into thinking he had won. Liam falls for the trap and kidnaps Cat. Liam brings Cat back to his lair and plans to kill her, but she distracts him when Vincent sneaks in and he's able to quickly sneak up on him and rip Liam's heart out. Later that night the friends are celebrating Liam's demise. JT comes up with the idea that Vincent and Cat should just get married already, but Cat and Vincent aren't sure about jumping into a wedding without any planning. The friends convince them to go along with it and Tess gets ordained so she can officiate the wedding. In the end, Cat and Vincent celebrate the new chapter in their life amoungest the people they hold close. Did you miss out on the season finale? You're in luck! You can watch Beauty and the Beast online now via TV Fanatic and catch up on the entire season.