Luigi Mangione due in court in bid to delay federal trial over CEO killing https://www.reuters.com/legal/government/luigi-mangione-due-court-bid-delay-federal-trial-over-ceo-killing-2026-04-01/?taid=69cd2d211ba7940001f8ee2d https://www.reuters.com/legal/government/luigi-mangione-due-court-bid-delay-federal-trial-over-ceo-killing-2026-04-01/?taid=69cd2d211ba7940001f8ee2d