By CBSLA Staff

LOS ANGELES (CBSLA) — Help is needed Friday to find the gunman who shot at a woman in North Hollywood twice, killing her in the second attempt.

Police say gunshots were reported at 9:15 p.m. Wednesday night in the 6900 block of Simpson Avenue. When officers arrived they found 27-year-old Gabriela Diaz, who had been shot to death, on the sidewalk, according to Los Angeles police.

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Investigators determined Diaz had been coming home from an errand when a gray sedan stopped on the street behind her car. A man got out and fired several times into her car before it took off north on Simpson Avenue.

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Diaz survived that shooting, only to be fatally shot moments later when the sedan returned, the LAPD said.

Police said they did not have a motive for the shooting, but the murder appears to be an isolated incident.

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Anyone with information about the shooting can call LAPD Detective R. January at (818) 374-1939.