TN

The provided news articles do not mention any organization called "TN." Therefore, it is impossible to provide a summary about TN based on the given information. The articles detail two separate incidents in Argentina: the discovery of rapper Mike Dee's body buried in his backyard after he was reported missing, and a school shooting where a student killed a classmate and injured two others. The rapper's death has caused shock in the Argentinian rap and hip-hop community. The school shooting, which occurred in San Cristobal, is described as an unprecedented event by the provincial governor. Both events highlight issues of violence and safety within Argentina, but neither relates to an organization called TN.