http://www.29x.org/education/des-moines-insurance/ A Des Moines insurance man accused of shooting his estranged wife on Interstate Highway 235 pleaded guilty today to a second-degree murder charge.Randy Lee Davis admitted that he shot his wife as she drove eastbound on Sept. 11, 2008, just north of downtown Des Moines. Second-degree murder carries a maximum 50-year prison sentence, with a requirement that he serve at least 35. Fri, 23 Apr 2010 11:28:10 CDT en