Authorities released new details Friday about a deadly shooting involving a Santa Clara police officer this week.

The Santa Clara Police Department said the incident started with two roommates arguing, which quickly escalated to a stabbing and ultimately a fatal police shooting.

"The officer attempted to deescalate the situation with verbal commands, but the suspect ignored the commands and raised their hand holding the knife to a striking position above the victim," Santa Clara police Chief Cory Morgan said. "When the officer saw the suspect's hand holding the knife come down toward the victim, the officer shot four times striking the suspect with all four of his shots."

Morgan said the officer, a 12-year veteran, did the right thing by intervening when he responded to the calls -- f

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