The one with the monopoly money? How do they know that it was his backpack? I heard them talking about the backpack and monopoly money non stop but I have heard nothing about how they are so sure that it’s related to the case. NYC is huge and there’s a lot of people who lose backpacks all the time and there’s a lot of folks who would want to troll and stir up shit.
The thing is, whoever did it was pretty smart about much of the crime, which is why the story of how Luigi was caught and what they say he had on is person seems so odd relative to the behavior the previous week.
If it was Luigi, he was pretty disciplined and smart before, during and immediately after the crime with the only leak being showing his face at the hostel (which he may have been required to do when he gave them ID).
If he did do it and really had all that evidence on him, maybe he wanted to get caught? It seems crazy that anyone would hang onto a 3d printed gun when it would be pretty easy to destroy and dispose of it in multiple pieces and locations.
I’ve said it before but I truly believe that Luigi would still be free if he had plucked his eyebrows, regardless of whether he did it.
Edit to add, maybe he thought he’d get shot or captured at the scene and didn’t think too far beyond the immediate getaway? And with the stress of his picture up all over the news and social media, he kinda wasn’t thinking straight?