G.J. McCarthy photoColumbia Police Department Sgt. Timothy Moriarity details his encounter with Steve Rios at the Maryland Avenue garage during day three of testimony in Rios' first-degree murder trial at the Boone County Courthouse in Columbia, Mo. Rios, a former Columbia Police Department officer, is accused of murdering University of Missouri-Columbia student Jesse Valencia in June 2004. DIT/MAY 2005/news/Rios Murder Trial Day 3 PART 2 gj