LOS ANGELES, CALIF. -- MONDAY, AUGUST 12, 2019: Pallbearers wait as an American flag is place on casket during funeral mass of slain LAPD officer Juan Diaz at the Cathedral of Our Lady of the Angels in Los Angeles, Calif., on Aug. 12, 2019. (Brian van der Brug / Los Angeles Times)

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Funeral held for slain LAPD Officer Juan Diaz

Pallbearers wait as an American flag is placed on the casket during the funeral Mass of slain LAPD Officer Juan Jose Diaz at the Cathedral of Our Lady of the Angels. (Brian van der Brug/Los Angeles Times)

LOS ANGELES, CALIF. -- MONDAY, AUGUST 12, 2019: A funeral mass was held for slain LAPD officer Juan Diaz at the Cathedral of Our Lady of the Angels in Los Angeles, Calif., on Aug. 12, 2019. (Al Seib / Los Angeles Times)

A funeral Mass was held for slain LAPD Officer Juan Jose Diaz at the Cathedral of Our Lady of the Angels in Los Angeles. (Al Seib/Los Angeles Times)

LOS ANGELES, CALIF. -- MONDAY, AUGUST 12, 2019: Rocio and Canderlario Diaz, the mother and father of slain LAPD officer Juan J. Diaz, hug a member of the clergy following a memorial service for their son, LAPD officer Juan Diaz at the Cathedral of Our Lady of the Angels in Los Angeles, Calif., on Aug. 12, 2019. (Al Seib / Los Angeles Times)

Rocio and Candelario Diaz, the parents of slain LAPD Officer Juan Jose Diaz, hug a member of the clergy after a memorial service for their son. (Al Seib/Los Angeles Times)

LOS ANGELES, CALIF. -- MONDAY, AUGUST 12, 2019: LAPD officer Najera wipes tears during the memorial service for fellow LAPD officer Juan J. Diaz during his funeral mass at the Cathedral of Our Lady of the Angels in Los Angeles, Calif., on Aug. 12, 2019. (Al Seib / Los Angeles Times)

An LAPD officer wipes away tears during the memorial service for fellow Officer Juan Jose Diaz during his funeral service at the Cathedral of Our Lady of the Angels. (Al Seib/Los Angeles Times)

LOS ANGELES, CALIF. -- MONDAY, AUGUST 12, 2019: Honor guard waits with an American flag during funeral mass of slain LAPD officer Juan Diaz at the Cathedral of Our Lady of the Angels in Los Angeles, Calif., on Aug. 12, 2019. (Brian van der Brug / Los Angeles Times)

An honor guard waits with an American flag during the funeral Mass of slain LAPD Officer Juan Jose Diaz at the Cathedral of Our Lady of the Angels. (Brian van der Brug/Los Angeles Times)