Damon and Stefan in “Unfinished Business”

Damon

Dear Diary, a chipmunk asked me my name today. I told him it was Joe. That lie will haunt me forever.

Stefan

What do you want?

Damon

I was hoping we could hang. You know, a little brother bonding. I know we don't actually "hang out", we team up. We join forces, activate our wonder twin powers.

Stefan

What are you doing?

Damon

Digging up clues. Most of the Originals are gone, but now we have a Whodunit in town. Hey, do you remember when we came back for Zachariah's funeral?

Stefan

Vaguely, why?

Damon

Cause memory serves, he wasn't the first founders council member killed that year. Or even that month.

Stefan

Your point being?

Damon

I'm trying to remember what year it was.

Stefan

1912.

Damon

So much for vaguely. 1912. Or as I like to call it, last time Mystic Falls had a serial killer on its hands.