Swedish underworld hit price for top boss is 500,000 euros. Mid-level criminal kill costs 250,000 euros. Ordinary murder priced at 100,000 euros. Gangs dominate with 12- and 13-year-olds selling drugs. Children deliver weapons and murder on order. Shootings and gang fights occur weekly in southern cities. Kurdish lawyer shocked by Swedish suburbs violence beyond her expectations. Richest country spirals into underworld violence.