The Los Angeles Police Department confirmed Arriaga's arrest on Twitter on Friday afternoon.
Singh had stopped a suspected drunken driver in the town of Newman when he was fatally wounded and managed to fire back but didn't hit his attacker, authorities have said. Christianson added Arriaga has gang ties. "It's a conversation we need to have". His brother Reggie, who spoke on their behalf, thanked law enforcement for catching the suspect.
Perez Arriaga crossed the border in Arizona several years ago and had worked a variety of jobs as a laborer, including at several dairies.
On Thursday evening, U.S. President Donald Trump tweeted about the incident, calling once again for stronger security at the U.S. -Mexico border. He said that local law enforcement should be able to turn over repeat offenders to U.S. Immigration and Customs Enforcement. "As a retired police officer I find this tragic situation unacceptable".
"He came to America with one objective, and that was to serve this country", Richardson said.
"Why are we providing sanctuary for criminals?" he asked.
Christianson was among a group of California officials who met with Trump and administration officials at the White House in May to speak against California's sanctuary laws. He did not specify the nature of the other warrants. The sheriff said in an email the act took effect in 2014 and "was a state-level sanctuary policy that limited law enforcement cooperation with ICE unless the arrestee had already been convicted of serious crimes". To blame the law "is highly irresponsible". He also said that Arriaga was a Sureno gang member and has several aliases and social media accounts.
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He expressed confidence that service to God with clear conscience brought about good tidings and blessings to the believers. Another resident, Danial Gambo, said he celebrated the season in a low key style in view of the harsh economic condition.
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He said Singh was also a K-9 handler whose drug-sniffing dog, Sam, was with him when he was killed.
The case caught national attention in part because of the suspect's reported immigration status.
Arriaga's brother, 25-year-old Adrian Virgen, and co-worker, 32-year-old Erik Razo Quiroz, were also arrested. Cervantes was arrested in in Turlock, and Virgen Mendoza was arrested in Livermore.
Newman police chief Randy Richardson explained in a news conference on December 27 that Singh had come to the United States with the intent of becoming a police officer.
Singh had worked for the Newman Police Department since July 2011.
A statewide search is underway in California for a man suspected of killing a police officer. "This is a man that I relieved on Christmas Day so he could go home and spend some time with his family and his newborn child". "He believed in this community", the chief said at a Friday night community vigil honoring the officer.
Richardson said Singh was an avid outdoorsman who loved fishing, hunting and riding his jet ski.