Watch The Vampire Diaries Online: Season 7 Episode 20Paul Dailly at .
Did Stefan really kill Penny?
On The Vampire Diaries Season 7 Episode 20, Stefan was forced to team up with Matt when things changed with Bonnie's condition.
Stefan wanted to know exactly what Matt was going on about, so the two of them had a full blown argument.
Elsewhere on this addictive drama, Alaric and Caroline teamed up to follow another lead that could save Bonnie's life and Caroline realized just how much she's missed her supernatural lifestyle.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.