sentences:  Colombia’s Supreme Court announced on April 18, 2008 they are investigating President of Congress Nancy Patricia Gutiérrez for having ties with paramilitary groups.According to Colombian newspaper "El Tiempo" the Supreme court started the investigation after statements made by former congresswoman Rocío Arias in Cambio.In an interview with the Colombian magazine the former congresswoman, also under arrest of being involved in parapolitics, said that Gutierrez was supported by paramilitary leader John Fredy ‘The Bird’ Gallo.