Maybe I’m just face-blind or being dense but the photos from the scene of the crime look like a different dude than the ginning hostel check in guy. The jackets and backpacks are different. Although people can have multiple jackets and backpacks. We don’t see much of the shooters face but the eyebrows look different. Although, people can pluck/shave eyebrows. I guess the happy hostel guy would have come forward and been like “WTF?” and “I have an alibi” if it wasn’t him?
These all look like different people with photos from different places at different times of the day. Probably their AI matched them and the coppers just had a quick glance, then put them on this panel.
Honestly, I doubt the person who shot him would actually be mad at being caught. He might’ve started a movement.