Roland Jason Stumon, 44, of Whittier, California, was fatally shot on the evening of November 30, 2021, near 13702 Valna Drive in Whittier. Emergency responders pronounced Stumon dead at the scene, and the Los Angeles County Medical Examiner-Coroner recorded the death as a gunshot fatality.

Police say the shooting followed a dispute between Stumon and his neighbor, John Vasquez, 35, of Whittier. Investigators allege the argument escalated and that Vasquez shot Stumon; Vasquez was arrested on suspicion of murder shortly after the incident and later charged with murder. The motive for the altercation has not been disclosed.

The community held memorials for Stumon and expressed shock at the violence in a residential neighborhood. What details about the dispute or the events that evening might help explain how this confrontation turned deadly?