Police search for an attacker who killed 3 in a knife attack in the German city of Solingen  The Associated PressAn attack at a festival in a German city kills 3 people and seriously wounds at least 5  The Associated PressPolice appeal for tips from public to help track Solingen stabber  The Guardian’Random’ stabbing spree at festival in Germany leaves 3 dead, others injured: report  Fox NewsScholz calls for severe punishment after Solingen attack  Yahoo! Voices