Tightly compacted, she pushed by the seemingly helpful patrons -- Tightly compacted sticks out; because someone has a compact? Coincidence, probably (she was probably the one with the compact anyways, don't feel like checking).
There's no problem with writing this in-character instead of out-of-character:
"Well?"
"'Well' what?" Sammy fired back.
"Well, she carried a compact mirror, did she not?" Joel asked those gathered nearby. There was a nervous shuffling of feet as Sammy slowly stood up from where he was crouched by the body, his steel spatula held in a white-knuckled grip.
"Maybe it was a reference to turtles, who..."
"Turtles!" Joel exclaimed, angrily. "Turtles! Is that all you can think about, zookeeper-man? Is life about nothing but animals to you? This was a real, live human being!"
Veins bulged on Sammy's forehead. He raised the spatula, and lunged.
The problem is: what the shit are they talking about? Clues would have to be presented in a TOTALLY different way, in order for our characters to discuss them, instead of us (plus, it would take a hell of a long time to discuss anything that way). It would be like "CSI Armageddon" or something, with nothing but physical evidence for clues, for the most part.
Still, if someone can figure it out, I'd give it a whirl.
PS: No turtle references here. Gongaa was innocent. Remember the compact. Focus on the compact. The compact was the murder weapon. NOT the spatula.