BOGOTA — Álvaro Uribe has become the first former Colombian president to be convicted of a crime.A court in Bogotá found the 73-year-old, who was president from 2002 to 2010, guilty of witness-tamperingBOGOTA — Álvaro Uribe has become the first former Colombian president to be convicted of a crime.A court in Bogotá found the 73-year-old, who was president from 2002 to 2010, guilty of witness-tampering