Helena teen charged in fatal shooting
June 5, 2009
A 17-year-old Helena resident has been charged with killing one teenager and injuring two others in a shooting that apparently stemmed from an argument over a girl. Sebastian Walter Olivares-Coster made an initial appearance before District Judge Jeffrey Sherlock Thursday morning on one count of deliberate homicide and two counts of attempted deliberate homicide. Bail was set at $500,000 and Olivares-Coster was taken to the youth detention facility in Great Falls. Olivares-Coster is charged with killing Cory Adam Andrewski, 16, and shooting two others. "This is one of the most b...