BRUCE JENNER ACCIDENT LEFT A WOMAN DEAD- NO PAPARAZZI INVOLVED

(CNN)Two days after Bruce Jenner was involved in fatal multi-car accident that left a woman dead, several questions remain: Who is at fault? Will anyone face charges? And what caused the crash in the first place?

This much we do know: the Olympic champion and reality TV star said he's cooperating with police in their investigation.

"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.

"It is a devastating tragedy, and I cannot pretend to imagine what this family is going through at this time. I am praying for them. I will continue to cooperate in every way possible."

Earlier, Jenner told police that paparazzi were following him at the time, but he wasn't trying to evade them. Investigators said there's no sign that photographers following him played a role in the crash.

"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.

A chain-reaction crash

The multi-vehicle wreck took place shortly after noon Saturday on Pacific Coast Highway in Malibu, the sheriff's department said.

It started when the driver of a Toyota Prius stopped suddenly and was hit from behind by a white Lexus, CNN affiliate KCAL reported.

Jenner, driving a black Cadillac Escalade, rear-ended the Lexus, which sent the Lexus into oncoming traffic, sheriff's department Sgt. Philip Brooks said.

The Lexus was then struck by a Hummer H2. The driver of the Lexus was killed.

Former Olympic decathlon champion and reality TV star Bruce Jenner was involved in a fatal four-car accident on Saturday, the Los Angeles County Sheriff's Department said in a statement. Jenner was not injured.

Five children and two adults were hospitalized with injuries, authorities said. Jenner was not injured in the crash, his publicist said.

Investigation launched

The Los Angeles County Sheriff's Department launched 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.

Bruce been tested for alcohol

Dead body of the victim

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. Jenner was questioned and went home.

Authorities haven't determined who was at fault in the crash, Brooks told CNN on Sunday.