FBI working cold case in west Fresno County

While the FBI was mum on its operations, its partnership with Yolo County officials could be in relation to a convict suspected of killing his five newborn children.

The Federal Bureau of Investigation and the Yolo County District Attorney’s Office are reportedly working on an unsolved cold case in Fresno County. 

Driving the news: FBI agents were spotted on the west side of Fresno County on Tuesday, digging holes in a field with shovels and tractors, according to a report from KMPH. 


  • A Yolo County official told KMPH that they are investigating a cold case involving multiple homicides. 
  • Officials would not comment on the specifics of the case because it is ongoing. 

Go deeper: While neither Yolo County nor the FBI would confirm, a cold case involving both Fresno County and Yolo County centered on convict Paul Perez. 

  • Perez was arrested at a state prison in Delano in 2020 for allegedly killing five of his newborn children between 1992 and 2001. 
  • The arrest came days before he was scheduled to be released on unrelated charges in 2020. 
  • All of his children died under the age of six months old. 
  • Three of the children have still not been located. 
  • Officials did not reveal if they found anything in Fresno County on Tuesday. 

What they’re saying: “When a fisherman pulled up badly decomposed remains of a baby from a Yolo County slough in 2007, many doubted the case would ever be solved,” Yolo County District Attorney Jeff Reisig told KMPH. “And in fact, despite much effort, the case went cold for over 10 years.” 

  • Reisig added, “The science and power of DNA has shown that monsters and killers cannot hide forever any longer.”
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