Robert Salinas Jr., 37, was shot and killed on August 12, 2018, at the Pomona train station. He and another homeless man, Jeremy Alexander Henness, were found in the early hours with multiple gunshot wounds and were pronounced dead at the scene after a nearby homeless person discovered them and sought help from a business.

Police traced a lead to 40-year-old Amtrak engineer Christopher Matthew Peterson of Ontario, who contacted the Ontario Police Department saying he might have been involved and saying he was intoxicated or high. Investigators recovered a firearm registered to Peterson at his home; he was arrested on suspicion of two counts of murder and booked without bail. Peterson was not on duty at the time and did not have a permit to carry a concealed weapon.

Officials reported drug paraphernalia near the bodies, and noted both victims were homeless; it is unclear whether either used the nearby county shelter. Peterson entered a not guilty plea and the investigation was ongoing. Does anyone have information about Salinas’s movements that night or knew him while he was living in Pomona?