Would be interesting to also know more about the ethnic background of the perpetrators.
They hit him with shoes, that should tell you a lot about them (let say it this way
some specific cultures think that hitting with shoes or even showing the underside of a shoe is a extra insult against people). Also this started as a major case in the media, which saw it as a example of Swedish racism, but it was dropped fast in very few days, and while all the articles mention that the victim was Black and Ghanaian, not a single time the ethnicity of the perpetrators was mentioned.