A federal judge in Evansville sentenced a former Boy Scout leader to 6 1/2 years in prison Wednesday on five child pornography related counts. 34-year-old Ryan Bieler of Ireland pled guilty to the charges in April. A search warrant served on Bieler's home last November turned up more than 600 sexually explicit images and videos on laptop computers and DVDs involving children 12 or younger. Bieler was fired in November as a senior district executive for the scouts' Evansville-based Buffalo Trace Council. He mostly worked with troop leaders and other adults.