It’s Probably Matsuri
Marude has no previous connection to Urie, and thematically it makes little sense for Akira to be relevant at the moment. There is however, one last person relevant to this scene that was left out of the proceedings.
The person who left behind the evidence that allowed Urie to sniff out Furuta, was Matsuri himself. Matsuri was also present at the Marude/Washuu scene which this scene is obviously paralleling, if not directly in the room at the time. This time Matsuri being the one to shoot the Washuu chairman in the head, rather than simply being the person to stumble in upon it afterwards makes an interesting parallel for a reversal of situations.
Also, Matsuri is the only one who has decent reason to have been following Urie around in what was otherwise supposed to be a secret meeting kept under wraps between him and Kuroiwa. After the death of the Washuu, Matsuri’s attention and priorities focused only to Urie.
The use of a sniper bullet as well, rather than direct interference fits Matsuri’s style. It’s been shown that even when cornered in a fight he wasn’t really able to produce a kagune despite being a full blooded ghoul. It is even possible that the mainline Washuu do not have this trait.
Matsuri has always been the type to only sit back entirely from the battlefield and watch. When he gets directly involved he loses himself in it. He’s a better strategist than a direct fighter, which fits with the position of a sniper.
Also there is this, still unused piece of calendar art. One which depicts Matsuri and Urie as opposites facing off. With Urie as Dracula and Matsuri as Van Helsing. This parallel however is one yet to be truly fulfilled with Matsuri’s sudden dropping out of the plot.
@tgcalendar2016 [x]
However if Matsuri were to reappear here in order to save Urie, it might make a few things about his character arc click into place. Number one is that Urie has always slowly been transforming himself into a full ghoul by pushing his own frame to the limit. It’s been a bit odd that Urie somehow shifted immediately back to normal after his frame out when Dr. Shiba warned him there was no going back from that point.
Unless of course, Urie was eating RC Cells prepared for him by Doctor Shiba the same way Sasaki is theorized to have been. This would explain Urie’s sudden unfathomable power increase to take down an SSS ranked Kakuja when he could barely handle himself against Donato last time around.
The point is of course that if Urie was saved by Matsuri here, he wouldn’t really be as saved. It’s more of a case of out of the frying pan and into the fire There’s a reason that Kuroiwa was killed, despite Urie’s sudden last minute revelation.
It’s because Urie’s revelation was not enough. The mindset that he can hold everything on his shoulders is exactly what led to his last framing out. Saiko even said so directly that it was a quality shared between him and Sassan. The same central issue that has yet to be resolved. The only thing Urie has diagnosed is it’s cause, and thus he’s doomed to watch helplessly as another person dies in front of him again that he could not stop.
Matsuri saving him really would only prolong that pain. An escaped Urie would no longer have contact with the CCG, and likely not even have the CCG’s RC cell formula to keep him fed. His only ally at that point then would be somebody he hated, and a full natural born ghoul.
Urie’s arc has always been about him slowly becoming a ghoul, the thing he thought he hated and blamed. It makes sense for his consequence now to be to lose his position and safety net within the CCG and become a fully branded ghoul cast out and forced to survive on his own.