One officer dead, another injured in shootout after report of traffic collision in Whittier

Whittier Police Officer Richard Jensen is comforted by other officers at Rose Hill Memorial Park.

Toni Rodriguez offers prayers at a makeshift memorial for Officer Keith Boyer in front of the police station.

People visit a make shift memorial for slain Whittier police officer, Keith Boyer, in front of police station to pay their respects.

Abisai Espinales, with her dog, Mila, stops to pray at the make shift memorial for slain Whittier police officer Keith Boyer in front of police station.

Vietnam veteran Frank Ventura salutes to pay his respects at the makeshift memorial for slain Whittier police officer Keith Boyer.

Whittier Police Chief Jeff Piper, right, and other law enforcement personnel escort the body of a slain Whittier police officer from UC Irvine Medical Center.  (Michael Owen Baker / For The Times)

The body of a slain Whittier police officer is escorted from UC Irvine Medical Center to a van to be driven to the coroners.

Brianna Michaud, left, and her mother Cherylynn Michaud pray at a vigil for slain Whittier police officer Keith Boyer.

Whittier Chief of Police Jeff Piper tears up and is comforted by Whittier Mayor Joe Vinatieri while speaking at a vigil.

Kim Williams, center, bows her head during a prayer at a vigil for slain Whittier police officer Keith Boyer.

Joanne Carrel holds a black and white American flag by a picture of slain Whittier police officer Keith Boyer during a vigil at the Whittier police station.

Marta Hernandez, who has a son who works at the Whittier Police Department, hugs Corporeal Jessi Pollnow after the press conference.

Whittier Police Department officers standby during a press conference about the death of Officer Keith Boyer.

Whittier Police Department Chief Jeff A. Piper pauses while speaking at a press conference about the death of Officer Keith Boyer.

The Honor Guard stands at the memorial for fallen officers at the Whittier Police Department before a press conference.

Flowers are left for Officer Keith Boyer at the Whittier Police Department. Boyer was killed and a second injured in a shootout with a gang member.

Fire personnel salute as the body of a slain Whittier police officer is driven from UC Irvine Medical Center to the coroners.

Fire personnel salute as the body of a slain Whittier police officer is driven from UC Irvine Medical Center to the coroners.

Investigators comb the scene on Mar Vista Street in Whittier after one police officer was killed and another injured while responding to a traffic collision.

Whittier Police investigate the scene of an officer-involved shooting in the area of Mar Vista Street and Colima Road.