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Cyber tips lead to arrest of two Turlock men
Charges range from child pornography to making a ghost gun
two arrests
John Alviso Jr. (left) was arrested for possession of illegal firearms and narcotics. Alfredo Villasenor- Santana Jr. was arrested for production and possession of child pornography, among other charges.

Two tips given to the Turlock Police Department from the National Center for Missing and Exploited Children led to the arrest of two men for two separate cases.

These tips were investigated by High Tech Crimes Detectives which led them to obtain search warrants for the suspects’ homes.

“We work hard and continue to find new ways to locate and identify these criminals,” said Turlock Police Detective Tim Redd, the lead investigator for both cases. “Our efforts are to keep these children safe and stop child exploitation in our local community and other communities throughout the nation.”

At approximately 8:04 a.m. Thursday, Turlock Police detectives served a search warrant at John Alviso Jr.’s residence, located in the 1300 block of East Avenue. Alviso Jr. was arrested at the home and the search revealed he was in possession of illegal firearms and narcotics.

Multiple electronic devices were also located and taken as evidence for forensic analysis, said Turlock Police spokesman Sgt. Michael Parmley.

Alviso Jr. was brought to the Turlock Police Department for an interview and was later booked at the Stanislaus County Jail.

Alviso Jr. was booked on charges of child endangerment, possession of a controlled substance while in possession of a loaded firearm, possession of a controlled substance, felon in possession of a firearm and ammunition and manufacturing an undetectable firearm (ghost gun).

Depending on the results of the forensic analysis of Alviso’s electronic devices, he may be facing additional charges in the future.

No local victims were identified in this investigation, Parmley said.

Around 11:30 a.m. Thursday detectives served a search warrant at the home of Alfredo Villasenor- Santana Jr. in the 800 block of South Minaret Avenue.

The search of his residence and electronic devices led to the discovery of child pornography evidence, Parmley said.

Villasenor-Santana Jr. was arrested at his home and brought back to the Turlock Police Department for an interview.

Villasenor-Santana Jr. was booked on production and possession of child pornography, disorderly conduct with a camcorder, sending obscene matter depicting a minor and an unrelated felony domestic violence warrant out of Fresno County.

One local victim was identified in this investigation and is currently safe with family members, Parmley said.

The Turlock Police Department asks that anyone with information regarding this on-going investigation to call Detective Tim Redd at (209) 664-7325. You can also contact the Turlock Police Department’s Tip Line at (209) 668-5550 extension 6780 or email at

The Turlock Police Department is an active participant in the Crime Stoppers Program. Callers can leave an anonymous tip by calling Crime Stoppers at (209) 521-4636 and may be eligible for a cash reward.