Good on him for doing the right thing, but a few thoughts.

1. Who the fuck walks around with that much cash? I keep a $20 bill (CAD, so only about 14 EUR) in my wallet for emergencies and everything else gets paid by card.
2. I suspect the police had a few similar questions for anyone brave enough to claim that wallet.
3. As per the community this is posted in, it’s a bummer that he was homeless in the first place but this is a huge windfall for him. Systemic issues aside, I see this as a win for the dude and his family.