Ilaysia McCoy was 18 and seven months pregnant when she was shot and killed on September 5, 2016, on the 1700 block of 17th Street in San Pablo, California. The shooting happened around 7:50 p.m.; McCoy collapsed on the street and died of a chest wound, and her unborn daughter also died.

Police say the shooting occurred during a larger altercation involving multiple people and that McCoy was not the intended target. Authorities arrested 21-year-old Luis Javier Monje-Morales Jr. in Vallejo within days and charged him with two counts of murder and attempted murder for shooting at another person. Luciano Rogelio Duarte turned himself in and was at one point a person of interest but was not charged and was released.

Investigators examined the actions of six people to reconstruct the events and determine a motive.