street corner where Guardado was shot, across from a bar and a nail salon, there was a makeshift memorial where someone had written RIP Papa Frisco.

The president of the San Francisco chapter of the Hells Angels Motorcycle Club was shot and killed Tuesday night on a Mission District street, police said Wednesday.
Mark "Papa" Guardado, 45, was shot at 10:30 p.m. Tuesday near 24th Street and Treat Avenue, about a mile from the group's clubhouse where he lived. He died at San Francisco General Hospital.Witnesses told investigators that Guardado and the gunman struggled before the shooting."They had a wrestling match first," said Lt. Mike Stasko of the San Francisco police homicide detail. Then "the guy shot him, and he got on his motorcycle and left."Police have made no arrests, but said one avenue they are exploring was that Guardado was fighting with a rival in another motorcycle group. "We're looking at all the options," Stasko said.An attorney who was defending Guardado in a battery case in Sonoma County said that he was "absolutely devastated" by the killing and that "Mark was a wonderful human being.""His friends loved him," said the attorney, Patrick Ciocca. "He really was an all-around good guy. There are hundreds, if not thousands, of people who are going to miss him dearly."
Members of the Hells Angels at the group's clubhouse on Tennessee Street in the Dogpatch neighborhood of San Francisco declined to talk about the killing.
At the street corner where Guardado was shot, across from a bar and a nail salon, there was a makeshift memorial where someone had written in large, black letters, "RIP Papa Frisco."The group's San Francisco chapter - or "Frisco," as its members call it - is the second-oldest Hells Angels club in the country, after Fontana in San The Hells Angels have long feuded with another motorcycle group, the Mongols. In 2002, a brawl between dozens of members of the two groups in a Laughlin, Nev., casino resulted in the deaths of three bikers and 13 injuries.
Guardado had an assault conviction in Massachusetts and served prison time there in the 1990s, but had no significant criminal record in California. When he died, however, he was facing charges in Sonoma County stemming from a beating outside a bar in Petaluma earlier this year. Police said the incident happened Feb. 10 at McNear's Saloon & Dining House. Guardado bumped a bar patron, who was not a member of a motorcycle gang. The patron fled the bar, authorities said.
Once outside, the victim was surrounded, beaten and kicked by several other alleged members of the Hells Angels, prosecutors said. Guardado started the attack for no reason, said Sgt. Jim Stephenson of the Petaluma police street crimes unit.
"We can't determine any motive - it was just what they do," Stephenson said. "It's just intimidation."In July, federal and local authorities raided the Hells Angels' clubhouse in San Francisco, and Guardado was arrested on suspicion of possessing illegal mushrooms. Guardado "was an extremely dangerous gang member," said Victoria Shanahan, the Sonoma County prosecutor in the Petaluma case. "I find it interesting the fact that they were arguing they are not gang members, but this appears to be a gang-motivated killing."