Officer Jeremy Henwood was shot at 45th Street and University Avenue. That is where police first learned of the shooting from a citizen on Henwood's police radio.

"All officers, all officers, there's an officer shot. There's an officer shot. He's still breathing," said an unidentified woman who did what she could to help Henwood.

Seconds later, a San Diego police dispatcher said, "11-99," the police radio code for an officer down.

"45th and University, 45th and University, 11-99," said the dispatcher. "I don't know who that is on the air that put it out."

Within seconds, police from nearly every agency in San Diego County rushed to the scene. The first there was a fellow San Diego police officer.

"I need medics [to] make it to 45th and University," he said. "I got an officer down with a gunshot wound to the head near the left ear."

As medics rushed Henwood to the hospital, a massive search began for the suspected shooter. Then, at about 6:15 p.m., San Diego police dispatch received a call that would lead officers to Dejon White, who is suspected in Henwood's shooting.

"I have a call that just came in from 4074 48th Street," said the dispatcher. "Anonymous caller said that a guy by the name of Dejon – a black male wearing a t-shirt and jeans [and] owns a black Audi with rims – pulled into that location, told the RP [reporting party] that he was running because he shot a cop."

A little more than a minute later, a San Diego police helicopter spotted White.

"Over the apartment complex… he just put a shotgun in the driver's side," said the helicopter pilot. "Let's expedite some units over here."

Units converged on the scene. Police said White emerged from his car with a shotgun.

“Shots fired [and] more shots fired," said the dispatcher. "That's going to be at 4000 48th Street."

The dispatcher went on to say, "The suspect was called 11-44 at the scene. He's not being transported."

11-44 is the police code for a dead body.