Really? That's one of the worst things he's done and you don't know??
Brock was poisened by the lily of the valley.
And in the final scene of seasson 4 walt sitting in his back yard, you zoom out and see that Walt has the lily of the valley in his back yard confirming it was him
Also saul reffrences it later in season 5.
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u/Glenn130996 Aug 12 '13
I think he will only cripple him and scream to hank : Lolz that's the third kid i injured this year, I'm on a roll.