German police detained a 34-year-old American man suspected of stalking Taylor Swift before her concerts in Gelsenkirchen, Germany, based on threats made on social media. The suspect was held in custody until the shows concluded, with no danger reported to Swift or attendees. Gelsenkirchen temporarily renamed itself 'Swiftkirchen' to honor the singer, who continued her Eras Tour in other German cities after the peaceful concerts. The arrest followed tips from event organizers, leading to the man's detention and subsequent court order for custody until Saturday.