NM: Armed Samaritan Shoots Attacker who Killed Police Officer

Story said Hernandez was responding to a  trespassing call from the owner of the business in the 300 block of South Valley Drive.

"When he arrived, Armando Silva immediately attacked him with a large kitchen knife," Story said. "For no reason whatsoever, Silva killed Officer Hernandez.

"A witness saw the unprovoked attack, retrieved a firearm from their vehicle and confronted the murderer. Silva tried to attack the witness and was shot at least once. Silva later died from his injuries."

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