The man who allegedly shot and killed Riverside County Deputy Isaiah Cordero in Jurupa Valley on Thursday afternoon has been identified by authorities as 44-year-old William Shea McKay. 

Who was William Shea McKay?

William Shea McKay lived in San Bernardino County. He shot 32-year-old Isaiah Cordero multiple times as the latter approached his vehicle during a traffic stop near the 3900 block of Golden West Avenue on Thursday afternoon. As a witness called 911, McKay fled the scene in a pickup truck. This led to a massive manhunt that spanned two counties.

Authorities identified McKay as the suspect and soon issued a a mass alert to neighboring law enforcement agencies. Following a search, the suspect was located. A chase ensued which came to an end in Norco. 

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Riverside County Sheriff Chad Bianco said in a press conference that the suspect fired at the officers, who returned fire. McKay was hit by the gunfire and succumbed to injuries at the scene. 

In the meantime, Isaiah Cordero was rushed to a local hospital where he was pronounced dead. 

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Authorities said McKay had an “extensive criminal history” dated to the 1990s. He was previously involved in kidnapping, robbery and multiple assaults. He was also involved in stabbing of a California Highway Patrol K-9. 

“This terrible tragedy should have been prevented by the legal system, McKay has an extensive, violent past and was convicted of his third strike in November of 2021,” Sheriff Chad Bianco said at the press conference, Los Angeles Times reported.

“Instead of sentencing him to 25 years to life, which should have happened, the judge lowered his bail, allowing him to be released,” Bianco added.