The FBI is ramping up efforts to apprehend Cesar Villarreal, a fugitive wanted for a decade-old murder and other violent crimes, and has turned to the public for assistance in tracking down the accused killer. According to a social media post from the FBI's Los Angeles office, Villarreal is sought for his alleged role in a 2010 shooting following an altercation that left one man dead and another injured; individuals with information on his whereabouts can call 310-477-6565 or submit tips online.

Details from the FBI's Wanted page for Cesar Villarreal paint a picture of a man with multiple aliases, including "Moreno," "Rat," "Black Boy," and "Little Black Boy," standing 5'6" to 5'7" tall and weighing between 160 and 165 pounds. This case, stemming from a heated exchange at a store which escalated when Villarreal later found and shot the two men from his pickup truck; this set off a manhunt that has persisted to this day with authorities offering a reward of up to $5,000 for information leading to Villarreal's capture, a convicted felon and a recognised gang affiliate.

Villarreal's charges include murder, attempted murder, and assault with a deadly weapon after a state warrant for his arrest was issued by the Superior Court of Los Angeles, County of Los Angeles, California, on June 11, 2010, followed by a federal warrant from the United States District Court, Central District of California, on August 27, 2010, when he was slapped with the charge of unlawful flight to avoid prosecution. Notably, Villarreal is believed to be living in Mexico, having previously resided in Baldwin Park, California, and may have connections in Oregon.

Known for his distinctive tattoos, including red lips and the word "Ofelia" on his left breast, Villarreal's background includes work as a concrete mason and cement finisher. The FBI has also warned that he may be traveling with his long-time partner, Obdulia Medina, their daughter Ahtziri Citlalli Villarreal-Medina, and Medina’s daughter Aileen Cecille Rey Diaz, the latter not being sought by law enforcement, Villarreal, who is believed to have his tattoos extend above his right breast around to his back and on both legs below the knees should be considered armed and extremely dangerous.