Exactly my thoughts, the police often arrest or in some cases murder homeless people, that’s their role in capitalist society. They do everything they can (except housing them) to hide them from the rich people, keep them in poor areas by making transportation tougher to rich suburbs, making cities unwalkable, or the elephant in the room, the anti-homeless laws that lock them up for any little thing

You assume he's sad about the death. Maybe he's sad he has to deal with it.