The quote is taken out of context. The sentence starts with "Youngsters that are criminals - they should get out". And before "walk over corpses" he says that "they got swedish passports but have not become swedish [culturally]. They are not interested in it".
How much context do you need for a quote that uses "walk[ing] over corpses" as a virtue???
It’s a somewhat common Swedish idiom: <https://sv.wiktionary.org/w/index.php?title=g%C3%A5_%C3%B6ve...>
Some