Los Angeles County sheriff's deputies shot and killed the half-brother of Robert Fuller in a shootout related to an alleged kidnapping, sheriffs’ department officials said.

Robert Fuller, a-24-year-old black man, was found hanging in a Southern California park last week. While officials said his death appeared to be a suicide, his family and activists have called for an independent investigation.

Deputies were tracking Fuller’s half-brother, identified as Terron Jammal Boone, for alleged kidnapping, spousal assault and assault with a deadly weapon.

Boone allegedly kidnapped a woman and held her against her will for several days, the sheriff’s department told FOX 11 in Los Angeles.

When authorities attempted to stop Boone’s car in Rosamond, Calif., just north of the Los Angeles County border Wednesday around 4:30 p.m., he opened the car door and started shooting at officers, the department said.

CALIFORNIA AG TO PROBE ROBERT FULLER HANGING, AS ACTIVISTS SUSPECT 'LYNCHING' WHILE POLICE RULE APPARENT SUICIDE 

Deputies said they returned fire and killed Boone. A woman who was in the car was shot in the chest in the crossfire but is expected to survive. A 7-year-old girl who was also a passenger was uninjured.

The woman in the car wasn’t the accuser in the spousal assault case, authorities said. It's not clear what her relationship or the 7-year-old's was to Boone.

A man stands at a memorial as where protesters gathered at the site where Robert Fuller was found hanged, Monday, June 15, 2020, in Palmdale, Calif. State and federal authorities will monitor the investigation into the death of Fuller, a black man found hanging from a tree in the Southern California city of Palmdale, officials said Monday following large weekend protests. (AP Photo/Mark J. Terrill)

“This afternoon I had to notify the sisters of Robert Fuller that their half-brother Terron Jammal Boone was killed by Los Angeles County sheriff’s deputies in Kern County," an attorney for Fuller's family said in a statement.

“At this time, until we receive all of the information, the family and their legal team doesn’t have any further comment on this incident. The family respectfully asks that their privacy be respected.”

Fuller was found hanged from a rope in a park across from city hall in Palmdale, Calif., on June 10 about 20 miles away from Rosamond. His family denies he was suicidal and more than 1,000 protesters came out to demonstrate near the tree where he was found Sunday.

Local authorities have said there’s no evidence of foul play in Fuller’s death but federal authorities, including the U.S. Department of Justice’s Civil Rights Division, said they will review the investigation into his death.

CLICK HERE TO GET THE FOX NEWS APP

Federal authorities also plan to review the investigation into a black homeless man named Malcolm Harsch, 38, who was also found hanging from a tree on May 31 in Victorville, Calif., east of Palmdale.

The Associated Press contributed to this report.