Investigators believe Richard Acosta drove his 14-year-old son, Abel Acosta, to commit the murders, and they allege that he knew it was going to happen. 14-year-old Xavier Gonzalez, 17-year-old Rafael Garcia and 16-year-old Ivan Noyala were killed in the shooting. In the days following the shooting, Abel Acosta disappeared. His father is the accused getaway driver. It’s unclear if there is any evidence that Richard knows where his son is.