Update: 911 caller arrested for allegedly threatening to kill SF police officer

A 911 caller who allegedly described a female San Francisco police officer in detail and threatened to kill her late Sunday night has been arrested, police said.

Ronald Johnson, 47, is suspected of giving emergency dispatchers a “very specific” description of a female officer who was driving a police car on patrol around 11:25 p.m. Sunday, which is when the call came in, Officer Grace Gatpandan said.

Johnson, a San Francisco resident, allegedly identified the officer in the call, which the California Highway Patrol initially responded to before transferring it to San Francisco police at 11:48 p.m..

Gatpandan would not say how the investigation led to Johnson, but said in an “immediate threat to someone’s public safety,” officers can ping phones and call family members of suspects to find their locations.

In this case, officers responded to the 900 block of Howard Street, at Fifth Street, in search of Johnson. He was later found and arrested without incident on the 400 block of Ellis Street, near the intersection of Jones Street, Gatpandan said.

Gatpandan said police have yet to determine the motive for Johnson’s alleged criminal threats.

“I don’t have exactly how common this is but calling 911 and making a threat against officers is very serious,” Gatpandan said. “We obviously have a very dangerous job but when it’s a very direct threat against someone… we need to find the person responsible.”

The female officer, whose name has not been released, was not alone in the patrol car. She went to a police station after the alleged threat was made against her. She was not hurt.

Johnson was booked Monday into County Jail on suspicion of a probation violation and felony resisting, delaying or obstructing a peace officer, police said.

He’s also being held without bail on suspicion of two misdemeanor counts of criminal threats, according to the sheriff’s department.

Johnson’s case has yet to reach the District Attorney’s Office, which files formal charges.

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