"oh, theres a extremely good distraction. Remember that bad fight that had occurred? With Kate and Samuel, that would've attracted quite the bit of attention. not only diverting hers, but everyone else's. attention away. It would be a large enough distraction, anyways. Plus, you waren't found among st the party-goers. Meaning you must've left before the party crashed. Furthermore, theirs the fact that you were both sedchulded to be there at night to "prove who's better". In fact, that even further proves the fact that you cared a lot about your pride, and status within the stock market. Either way, the logic and Circumstantial evidence is more than enough to prove you were definitely there at the time of the crime. And before you try to rebutt with "That note was from a earlier date", why would he still have it on him then? and furthermore, why would our killer try so hard to make sure that the note was unreadable before leaving? And the FUNNIEST BIT. With those sedatives in him, theres no way he would've been able to get all the way to the casino and the market without some sort of support, he was drugged out of his mind.