Castle - "Knockdown"

Season one gave us some tidbits. The season two episode "Sucker Punch" gave us the first part of the story. In this week's episode of Castle, "Knockdown", we get the next big chunk of the mystery.

I'll get to the rest of the episode in a moment. But first, a recap of what we know so far about Johanna Beckett's death.

Who killed Beckett's mother? Recapping what we know so far.

I was watching The Big Bang Theory this evening, and CTV was busy promoting the heck out of Castle. There's a new episode tomorrow, in which [spoiler] happens. And, according to the trailer...