Christopher Lee Mosco, a 32-year-old white male, died Sunday, Oct. 3, after being shot by law enforcement near 24915 Chicory Court in Unincorporated Santa Susana Mountains, according to Los Angeles County Medical Examiner-Coroner's records.

Lisa Marie Gastelum, a 51-year-old Latina, was shot and killed Sunday, Feb. 15, in the 24900 block of Pico Canyon Road in Stevenson Ranch, according to Los Angeles County coroner’s records.

About 8:40 p.m., Gastelum and her husband left a Federal Express store together. Sheriff's officials say her husband shot Gastelum and himself. The husband later died.  

A weapon was recovered at the scene, according to a news release from the Los Angeles County Sheriff’s Department.

Gastelum was pronounced dead at the scene at 9:04 p.m., according to coroner’s records.  The cause of the dispute is still under investigation.

Anyone with information is asked to call the Sheriff’s Department Homicide Bureau at (323) 890-5500. Those who wish to remain anonymous can call Crime Stoppers at (800) 222-8477.

-- Los Angeles Times staff

Nabil Tawab, a 37-year-old white man, was shot and killed Tuesday, Dec. 22, in the 26600 block of The Old Road in unincorporated Los Angeles County, authorities said.

Tawab was shot about 6:30 p.m. outside of an office building, authorities said. He was attending a holiday party with several co-workers at the building, and witnesses told detectives he went outside to get something out of his car.

Moments later, witnesses heard gunshots and found Tawab shot in the parking lot, authorities said. Witnesses told detectives they did not see a suspect, and the motive for the killing is unknown, authorities said.

Tawab was pronounced dead at a hospital at 7:17 p.m., according to coroner's records.

-- Robert J. Lopez and Anthony Pesce

Rochelle Chevalier, a 49-year-old white female, died Wednesday, Dec. 17, after sustaining blunt force trauma in Unincorporated Santa Susana Mountains, according to Los Angeles County coroner's records.

Gevorg Gasparyan, a 25-year-old white man, was killed at about 3:30 a.m. Saturday, Sept. 22, at 30007 Lexington Avenue in Val Verde. Val Verde is just west of Santa Clarita, up by Castaic.

He was in a house with another white man, said Sheriff's Lt. Larry Lincoln. Two robbers wearing masks broke in and ordered the pair to the ground at gunpoint. One of the victims managed to wrest a gun away from a robber, and a struggle ensued. The other robber shot the 25-year-old man, and the two fled.

Alex Paul Valdez, a 43-year-old Latino male, died Monday, Dec. 4, after sustaining blunt force trauma in Unincorporated Santa Susana Mountains, according to Los Angeles County coroner's records.

Wilbur Kenneth Channell, a 70-year-old white male, died Monday, Dec. 23, in Unincorporated Santa Susana Mountains, according to Los Angeles County coroner's records.

Matthew Bruce Kirkbride, a 42-year-old white male, died Monday, Feb. 25, after sustaining blunt force trauma in Unincorporated Santa Susana Mountains, according to Los Angeles County coroner's records.