MEXICO CITY (AP) — Federal police say a gunman working for a drug gang has shot to death a woman who distributed newspapers in the northern Mexican border city of Ciudad Juarez. The authorities say the gang's leaders saw her as a threat to their control over street vendors. Victim Maribel Hernandez distributed the Diario de Juarez and PM newspapers. Police say that La Linea gang thought she was discriminating against newspaper vendors who paid protection money to the organization. In a statement issued Tuesday, the police say they have detained a suspect who told them he was paid 3,000 pesos ($250) to kill the woman.