Story highlights

NEW: "I will continue to cooperate in every way possible," Bruce Jenner says in a statement

The reality TV star's SUV hit a car and pushed it into the path of an oncoming Hummer, authorities say

Investigators say there's no sign paparazzi following Bruce Jenner played a role in the crash

CNN  — 

The adult stepchildren of a woman killed in February in a four-car crash that also included Bruce Jenner have filed a civil lawsuit against the former Olympian and reality TV star.

“My heartfelt and deepest sympathies go out to the family and loved ones, and to all of those who were involved or injured in this terrible accident,” Jenner said in a statement released Sunday by his publicist, Alan Nierob.

Jenner was not injured in the crash, Nierob said at the time. Shortly after the accident, Nierob provided a statement from Jenner to the family.

“That is a very regular occurrence, and (there is) no indication at this time it was a contributing factor of the crash,” Los Angeles County Sheriff’s Department Lt. John Lecrivain said.

Authorities hadn’t determined who was at fault in the crash, Sgt. Phillip Brooks of the Los Angeles County Sheriff’s Department told CNN in February.

Jenner first catapulted to fame after winning the 1976 Olympic decathlon with a world record score for the 10-discipline event. He quickly capitalized on his success with Wheaties commercials, appearances and other ventures.

That day, Jenner was driving a black Cadillac SUV that was the third vehicle involved in a multiple rear-end collision, Brooks said.

The first vehicle was a black Toyota Prius, CNN affiliate KCAL reported, citing deputies. Behind it was Kim Howe’s white Lexus sedan, which also hit its brakes.

Jenner’s Escalade was towing a trailer with an all-terrain vehicle on it when it ran into the Lexus from behind, Brooks said. The Lexus spun into oncoming traffic and was hit by a Hummer H2. The driver of the Lexus was killed.

Photos published on the TMZ celebrity gossip website purported to show the moment of impact.

No information about the deceased was immediately available. Jenner, 65, was not injured in the crash, publicist Alan Nierob said.

KCAL reported Jenner’s SUV left skid marks.

01:24 - Source: KCAL
Bruce Jenner involved in fatal crash

The wreck took place shortly after noon on Pacific Coast Highway in Malibu, the Sheriff’s Department said.

The department later opened a vehicular manslaughter investigation, a source close to the case told CNN legal analyst Mark Geragos. The investigation will focus on everyone in the case, not just one person, the source said.

The Sheriff’s Department said on its Facebook page that the surviving drivers were cooperating with investigators.

A deputy said Jenner voluntarily took a field sobriety test, was questioned and went home. Jenner passed the test, according to a report by CNN affiliate KSBW.

Five children and two adults were hospitalized with injuries, authorities said.

Five children and two adults were hospitalized with injuries, authorities said.

The accident occurred on a tricky stretch of the highway, where the road is narrow and twisting.

In a bizarre twist to the story, a car later drove through safety barriers around the scene and struck two of the cars from the initial accident, Cmdr. Mike Parker of the Sheriff’s Department tweeted. The driver was arrested on suspicion of driving under the influence, Parker wrote.

Jenner won the 1976 Olympic decathlon with a world record score for the 10-discipline event. He quickly capitalized on his success with Wheaties commercials, appearances and other ventures. He also became an actor, appearing in the drama “CHiPs” in 1981 and occasionally playing himself on shows such as “Silver Spoons.”

Most recently, Jenner has made entertainment headlines over rumors he has started transitioning to become a woman. Jenner has not commented publicly on the speculation.

Bruce Jenner’s transition: Even in the age of reality TV, public gender transitions still uncommon

He and Kris Jenner, the show’s matriarch, divorced last year.

E! said Jenner was not shooting for “Keeping Up with the Kardashians” on the day of the accident.

Bruce Jenner’s transition: Even in the age of reality TV, public gender transitions still uncommon

CNN’s Rachel Wells, AnneClaire Stapleton, Janet DiGiacomo, Rachel Wells, Paul Vercammen, Paul Matadeen, Christie Bear, Vivian Kuo and Catherine E. Shoichet contributed to this report.