Chapter 22- "Our Doubts Are Traitors" part 2

[HardKor]

What's with all the hate on Riley? She has no motive. Most times in these situations clues have already been given out, unless I forgot something Riley's just mad at herself for what happened to Lizzy. Besides I don't think KC would just turn around and say: "just kidding about the scent thing!"

in 20-3 Scratch makes mention of the Mallers having a "her" during a conversation with Tardust (right after mentioning that she is going to drop Pippin off [around 12:25]). I know I for one have been theorizing that this "her" might be a hostage. If this is the case everyone in the Tower could have a potential motive.
As for the scent factor, She could have splashed herself with booze after killing Pippin to throw off people off her trail. When Angel and Riley were on the roof before, Angel didn't mention her smelling of alcohol. It was more like he noticed her acting drunk (slurred speech, stumbling. knocking things over, etc...).

P.S.
Riley also has the best motive for stealing the silenced pistol in the first place. I wondered in the part 1 thread why someone would steal the gun because whoever did it would have had to steal it before Pippin showed up either before or during the Lizzie rescue attempt. Riley has a motive for stealing the gun: Steven. She might have wanted to kill ol' Steve for getting Lizzie kicked out and then Pippin shows up and takes priority.
I doubt it will happen, but if Steven winds up with a cap in his ass I'm declaring victory.