Another witness, Shaun Kingston, said he heard at least 10 gunshots.
Shaun Kingston said he saw the gunman shoot at a firetruck and reload expertly.
Corona is the second officer killed in California in the past two and a half weeks. Unwilling to endanger personnel, they sent a robot with a camera inside, where they discovered the suspect dead of an apparent self-inflicted gunshot wound.
She remained laser-focused on becoming a police officer, following in the footsteps of her father, a former deputy with Colusa County Sheriff's Department.
Corona also attracted notice last month on the Davis police's Facebook page after bringing supplies to survivors of the Camp Fire.
"I don't remember her talking about anything else than wanting to become an officer", said Gomez, who said her cousin was an athletic star in high school, excelling in volleyball, basketball and track. "That's all she had to give was love".
On Jan. 5, a police officer in Utah was shot dead while trying to arrest a risky fugitive. He said from the first day in the academy to the last day of an officer's career, they're mindful of these risky possibilities.
Pascual quickly ducked to the ground when he heard the gunfire.
He says he didn't believe the shots came from someone in one of the crashed cars.
Isabel Espindola, who worked with Corona at Colusa Casino Resort prior to Corona's police training, said of her friend, "She was so excited to start the police academy".
"And I said, 'well Natalie, you can do that but you're going to run into people like that all the time".
A Northern California rookie policewoman who was shot and killed is being remembered as "the cop that any community would want". "Everybody who met her liked her". Residents placed flowers at a growing memorial outside the police department Friday, where flags flew at half-staff.
Governor Gavin Newsom said in a statement that he and his wife are "terribly saddened to learn of the death.Officer Corona was protecting her community from harm when she was tragically shot in the line of duty". Police have not named the suspect, who was found in a house near the shooting, nor determined what prompted the shooting. The Sacramento County Sheriff's Department will take over the investigation, Pytel announced.
Davis Police Officer Natalie Corona was shot after responding alone to a traffic accident shortly before 7 p.m. Thursday in the city west of Sacramento. Despite valiant attempts by paramedics to save her, Corona succumbed to injuries at UC Davis hospital, Pyte said.
She finished the police academy last July, and completed the field training just before Christmas.
Her death follows the killing of a central California officer on December 26 during a traffic stop.
The man who gunned down Officer Natalie Corona in this small college town on Thursday night later killed himself in a house, but police still don't know the motive for the attack, Police Chief Darren Pytel said Friday.
The California police officer who was shot and killed Thursday night after responding to a three-car crash was ambushed by a bystander, according to a Columbia University graduate student who had been involved in the wreck. Police said the shooting happened in the area of Fifth and C streets near downtown.
Following the shooting, police issued a citywide shelter in place order as officers spent hours scouring the city in search of the suspect.