By Elise Kaplan / Journal Staff Writer   The city's Violence Intervention Program has received a 0,000 grant from the W.K. Kellogg Foundation to launch a pilot program at West Mesa High School to address the root causes of violence among students and hopefully prevent further tragedies from occurring. Officials hope the 18-month long program can be expanded across Albuquerque Public Schools. A little over three months ago, in late February, 16-year-old Andrew Burson was fatally shot just outside the West Mesa High campus while classes were in session. Police have charged 14-year-old Marcos Trejo with murder and said the...