The Stockton Police Department told CBS13 that it is aware of the Indian news reports and is not ruling anything out.
"For me, it's just making sure my family is safe, my community is safe and just being extra vigilant," said Tejpaul Singh Bainiwal, joint secretary and historian at the Stockton Gurdwara.
"We heard like 10 gunshots," said Brian Abrigana, who lives next door to where the homicide happened. "There were always people coming and going. They would have the garage open at all times of the day and night. Cars were coming and going."
In a Facebook post, the Punjabi gang claimed responsibility for the killing with a message they claimed was for their enemies.
Abrigana recognized the photos of his next-door neighbor right away from the India reports. The San Joaquin County Coroner's Office has not officially identified the man who was killed.
"I didn't even know that was a thing, much less in Stockton," Abrigana said.
"It is worrisome to hear that they are active here," Bainiwal said.
"Especially given that Stockton Gurdwara has always been politically active against the injustice and tyranny happening in India against Sikhs."
"Based on what we've observed, there hasn't been a significant increase in Punjab gang activity in San Joaquin County. We continue to work with law enforcement, and now, with the passage of prop 36, we can be even more proactive in addressing gang activity in San Joaquin County."
Stockton police said its detectives are working to unveil more information on this.
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