OAKLAND — On Dec. 4, Jimmy Martinez survived a shooting when his dog came to his aid and scared off the gunman.

He did not survive another shooting Friday night.

The 54-year-old auto mechanic was fatally shot in the 600 block of 85th Avenue in East Oakland, where he and his dog Chata had relocated in his RV after the earlier shooting, police said.

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Martinez and Chata were both still recovering from wounds inflicted in a Dec. 4 incident that was prompted by a dispute over a parking space. Martinez had been shot in the hand and Chata in the face.

About 9:30 p.m. Friday, Martinez stepped outside the RV to fill up some water jugs, leaving Chata inside, police said.

Moments later, he was shot by someone he got into a confrontation with, police said. He was pronounced dead at the scene.

The killer fled before police arrived, and so far homicide investigators have no information on the motive or the suspect. Police are reviewing the Dec. 4 case to see if there might be a connection but said it was too early to tell. No arrests have been made in that shooting.

Since moving to the 85th Avenue site, which is in an industrial area where other occupied RVs are parked, Martinez had no reported problems, authorities said.

After Friday’s shooting, Chata was given to relatives of Martinez to be cared for. They told police she seemed calm.

Among the RVs camped along 85th Avenue, a man known to neighbors as ‘The Mayor’ remembered Martinez as a quiet man who had helped out others with a tow or tools like many in the community.

“I know a lot of people out here and Jimmy Martinez — he was a good guy,” he said.

Chata had saved Martinez’s life twice, once from being stabbed by an assailant who had confronted Martinez, “The Mayor” said.

The Dec. 4 shooting happened in the 4700 block of East 12th Street. Martinez said afterward that his 4-year-old Labrador and pit bull mix, “saved my life.” The dog, he said, came to his defense and prevented further shooting by an attacker.

A man apparently upset about the parking place being taken up asked Martinez to move his RV and became angry and abusive when Martinez said he would, but needed a few minutes to charge the vehicle battery.

The men started arguing and the suspect left briefly, then returned with a gun. He pistol-whipped Martinez on the head before shooting him and the dog.

A GoFundMe campaign set up by PALS East Bay, a nonprofit pet assistance group, had previously raised over $8,500 for Martinez and Chata’s medical bills after the shooting earlier this month.

“It’s devastating news,” said Nicole Perelman, spokesperson for PALS East Bay. “We’re devastated for his family. It’s very sad and tragic.”

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PALS is hoping that someone will step forward and adopt Chata, who is a “sweet dog, but shy right now that she is recovering from trauma.”

Anyone interested in adopting Chata can contact PALS East Bay at palseastbay@gmail.com

The killing is the 74th homicide investigated by Oakland police this year. Last year at this time police had investigated 82 homicides in the city.

Police and Crime Stoppers of Oakland are offering up to $10,000 in reward money for information leading to the arrest of the killer. Anyone with information may call police at 510-238-3821 or Crime Stoppers at 510-777-8572.

Check back for updates.