PHOENIX -- A trial is scheduled to begin this week for a 20-year-old man charged with killing a teenager as the boy defended his sister from an armed robbery.
Authorities said Vince Quimayousie killed Andrew Murphy, 16, and made earlier armed-robbery attempts at Marivue Park on Sept. 18, 2012. Jury selection had been scheduled for Monday, but it was pushed to Wednesday.
Authorities said Murphy was killed after he stepped in front of the robber to confront him after he had approached Murphy's 14-year-old sister with a demand for money.
Quimayousie has pleaded not guilty to charges of first-degree murder, armed robbery and aggravated assault. In a police interview, he acknowledged being near the park on the day of the killing, but he denied involvement in the crime, court records say.