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?
I have a rucksack, and the design elements I can see from the hostel seem to match up pretty good.
Unless this individual has two fairly costly backpacks that they’re just swapping between, I think the media is calling out an innocent person.