On February 19th, 2020

Two Suspects Arrested & Charged with the Murder of Two Children California DOJ special agents team with local law enforcement during investigation

Jason Cornejo

UNION CITY – On February 14, 2020, state and local law enforcement agencies announced the arrest of two suspects, Jason Cornejo, 18, of Castro Valley and a 17-year-old from Hayward, both charged with the homicide of two children. The arrests are the result of a joint enforcement action targeting alleged gang members in Union City and Hayward.

The operation conducted on February 6, 2020, involved the:

  • California Department of Justice’s Special Operations Unit.
  • Union City Police Department,
  • Hayward Police Department,
  • Alameda County Sheriff's Department,
  • And the California Highway Patrol.

“This was a several months long investigation into suspected violent individuals whose activity terrorized neighborhoods,” said California Statewide Law Enforcement Association (CSLEA) President Alan Barcelona.  “I am thankful the suspects are off the streets and hope that the arrests bring relief to the victims’ families and the community.”

The operation targeted criminal activities believed to have been committed by a Hayward gang involved in a violent gang war with a rival gang in the area since 2005. The rivalry between the street gangs resulted in several gang-related homicides and shootings, including a November 2019 shooting near an elementary school that resulted in the murders of Sean Withington, 14, and Kevin Hernandez, 11, both of Union City.  As a result of the operation, two suspects were charged with murder in this case.

The California Department of Justice’s Special Operations Unit is a collaborative investigative effort between the California Department of Justice and the California Highway Patrol that provides statewide enforcement for combating violent career criminals, gangs, and organized crime groups, along with intrastate drug traffickers.

The Union City Police Department requested assistance from the above law enforcement departments during a nearly three-month long investigation. Each of these organizations dedicated resources, equipment and expertise to work side by side with Union City detectives. The combined efforts of more than 32 investigators and thousands of hours of investigation resulted in the granting of search warrants at six different East Bay locations.

The search warrants were served on February 6, 2020.  The result of those search warrants included the seizure of:

  • 40 lbs. of marijuana – street value $32,000
  • 8 lbs. of methamphetamine – street value $28,000
  • More than $10,000 in cash
  • 2 handguns
  • 3 Assault Weapons
  • Several High Capacity Magazines and Ammunition
  • Other Pieces of Evidence Related to the Double Murder

Both suspects were already in-custody on other unrelated charges prior to their arrests for the murders of Withington and Hernandez.

 

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