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Bureau of Alcohol, Tobacco, Firearms and Explosives

Northern District of California

For Immediate Release

May 15, 2012

Melinda Haag, United States Attorney

Contact: Jack Gillund

Mongols Motorcycle Gang Member Sentenced to Life in Prison for Murdering President of San Francisco Hells Angels

SAN FRANCISCO – Christopher Bryan Ablett, a/k/a Stoney, a member of the Modesto Chapter of the Mongols outlaw motorcycle gang, was sentenced today to serve two concurrent life sentences and one life sentence to run consecutive, United States Attorney Melinda Haag announced. The sentence was imposed for the defendant’s gang-related murder of Mark Papa Guardado, the president of the San Francisco Chapter of the Hells Angels, on Sept. 2, 2008, at 24th Street and Treat Avenue in the Mission District of San Francisco.

The defendant killed a complete stranger for no reason other than his membership in a rival motorcycle gang, U.S. Attorney Haag said. This sentence should send a clear message that there is a heavy price to pay for engaging in such a senseless act of violence. There is nothing we can do to bring Mr. Guardaro back. I hope, however, that this conviction and sentence begin to bring his family some closure.

Evidence at Ablett's trial showed that during a trip to San Francisco to visit a friend, Ablett was armed with a foot-long military knife and a .357 magnum revolver and brought a Mongols full-patch vest and t-shirt that only a full member of the Mongols is allowed to wear. According to testimony from Bureau of Alcohol Tobacco Firearms and Explosives (ATF) gang expert, Special Agent John Ciccone, and former Mongols undercover ATF Special Agent Darrin Kozlowski, the Mongols are an organized criminal motorcycle gang whose primary rival is the Hells Angels motorcycle gang.

When Guardado learned that Ablett was wearing a Mongols patch shirt in a bar in the Mission, Guardado went to the street outside the bar and approached Ablett. A fight broke out, and Ablett stabbed Guardado four times and shot him twice, killing him. According to the testimony of FBI Special Agent Jacob Millspaugh, the case agent, Ablett’s phone records showed that he spent the next several hours calling people who were identified as members of the Mongols.

Following the trial, on Feb. 22, 2012, the jury rejected Ablett’s claims that he acted in self-defense, in defense of his friends, and in the heat of passion. The jury also found that the defendant murdered Guardado to maintain or increase his position in the Mongols, and that the Mongols engaged in racketeering activity.

The sentence was handed down by United States District Court Judge Richard Seeborg for Ablett’s convictions for murder in aid of racketeering, in violation of 18 U.S.C. § 1959; assault with a deadly weapon in aid of racketeering, in violation of 18 U.S.C. § 1959; using a firearm during a crime of violence, in violation of 18 U.S.C. § 924(c); and using a firearm causing murder during a crime of violence, in violation of 18 U.S.C. § 924(j). A federal life sentence does not allow for parole.

The case was prosecuted by former Assistant United States Attorney Christine Wong and Assistant United States Attorneys Kathryn Haun, Wilson Leung and William Frentzen; with the assistance of paralegal specialist Lili ArauzHaase, legal techs Marina Ponomarchuk, Daniel Charlier-Smith, and Ponly Tu. The case was investigated by the Federal Bureau of Investigation, the Bureau of Alcohol Tobacco Firearms and Explosives, and the San Francisco Police Department.

Further Information:

Case #: CR 09-0749 MMC

A copy of this press release may be found on the U.S. Attorney’s Office’s website at

Electronic court filings and further procedural and docket information are available at

Judges’ calendars with schedules for upcoming court hearings can be viewed on the court’s website at

All press inquiries to the U.S. Attorney's Office should be directed to Jack Gillund at (415) 436-6599 or by e-mail at