German police are searching for a man who attacked nearly a dozen people with a knife, killing three, during a street festival in Solingen. The possibility of a terrorist motive has not been ruled out. The suspect allegedly stabbed random victims during a celebration, resulting in three deaths and eight injuries. The police have detained a 15-year-old boy for questioning and are seeking public assistance in the investigation. Authorities are working to apprehend the perpetrator, while concerns about security and the city's history of racial violence add complexity to the situation. Solingen, known for its knife production, is a diverse city with a significant immigrant population.