Arriaga was apprehended in Lamont, east of Bakersfield, about 200 miles from where police officials say he gunned down Newman Police Cpl. Ronil Singh on Wednesday, Dec. 26.
Stanislaus County Sheriff Adam Christianson said that Arriaga was trying to flee to Mexico and seven people had been arrested for lying to investigators, trying to throw them off while he fled the country.
A Mexican national, Arriaga was one of the millions of illegal immigrants currently in the United States. The arrest highlighted the dangers of a California law passed in 2017 that placed limits on how closely law enforcement can cooperate with federal agents seeking to deport illegal immigrants arrested for crimes, officials said.
“Why are we providing sanctuary for criminals, gang members?” Christianson said at a news conference on Friday, reported Reuters. “It’s a conversation we need to have.”
“If he wasn’t here then he wouldn’t have been driving drunk and it wouldn’t have been reported to officer Singh and the … enforcement stop potentially never would have occurred,” he added, noting that Arriaga had two prior driving-under-the-influence arrests and ties to the Sureño Street Gang.
Ana Leyde Cervantes, 30, Arriaga’s girlfriend, and his brother Conrado Virgen Mendoza, 34, were arrested on Friday.
On Thursday, another of the suspect’s brothers, Adrian Virgen, 25, and a co-worker, Erik Razo Quiroz, were arrested.
The investigation also included three other arrests on suspicion of aiding and abetting on Friday. The adults were in the house where Arriaga were found.
They were identified as Bernabe Madrigal Castaneda, 59, Ermasmo Villegas, 36, and Maria Luisa Moreno, 57.
Officials also said that investigators believe that they recovered the handgun that Arriaga used to shoot Singh after Singh pulled him over for a traffic stop.
Singh left behind a wife and young child.
“I think that what’s being lost here is yes, he was a police officer and that’s why all of you are packed in this room—because he was tragically taken from us. But what needs to be known is he was truly just a human being and an American patriot.”
President Donald Trump noted that another illegal immigrant is suspected of carrying out a murder.