Complex sentence: Priklopil kidnapped Kampusch on the morning of March 2,1998 as she was on her way to school, eventually keeping her in a custom built basement (sometimes referred to as a "dungeon" in news reports) under his house in Strasshof, Lower Austria.
Split into simpler sentences: Priklopil kidnapped Kampusch on the morning of 2 March 1998 as she was on her way to school. Priklopil kept her in a custom built basement (sometimes referred to as a "dungeon" in news reports) under his house in Strasshof, Lower Austria.