Complex sentence: Rabani died in the early hours of December 15th, 2007 and later the same day, several hundred of persons gathered in downtown Stockholm, Göteborg, Malmö och Helsingborg, in honor of his memory.
Split into simpler sentences: Rabani died in the early hours of December 15th, 2007. Later the same several hundred of persons gathered in downtown Stockholm, Göteborg, Malmö och Helsingborg, in honor of his memory.