Story highlights Video shows responders failed to determine whether Ye was still alive, lawyer says

Ye Meng Yuan, 16, survived the San Francisco plane crash last July

But she was run over and killed by an emergency vehicle

Newly released video suggests multiple emergency workers spotted her injured body

Teenager Ye Meng Yuan didn't die when a plane crashed at San Francisco International Airport last July. She actually survived the impact, only to die minutes later after a fire truck ran over her.

Now, newly released video suggests emergency workers saw Ye's injured body on the ground before she was fatally struck -- challenging earlier claims that she was accidentally run over because she may have been covered in firefighting foam.

In the footage, one firefighter tried to stop an emergency vehicle racing toward the scene.

"Whoa, whoa, whoa! Stop, stop, stop! There's a body ... there's a body right there. Right in front of you," the firefighter told the driver.

The video was captured on a camera attached to a firefighter's helmet and first aired by CBS. Another video from a fire truck shows a firefighter on the ground directing the truck around a victim, who was not covered in foam at the time.

Ye Meng Yuan, one of two teenagers killed in the Asiana air crash

Ye, 16, was on her way to an American summer camp from her home in China. Justin Green, a lawyer for her family, said the video shows several firefighters saw her lying on the tarmac, but none "did the basic step of checking if she was alive."

"It's unthinkable," Green told CNN's "Anderson Cooper 360." "It's unimaginable, because the first thing -- the first priority of the firefighters or any rescue personnel -- is saving lives, and the first step in triage is to take the pulse, check the respiration. That was never done."

A California coroner ruled that Ye was alive when flung from the plane but died of "multiple blunt injuries that are consistent with being run over by a motor vehicle."

Photos: Plane crash-lands in San Francisco Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – In this handout photo released by the National Transportation Safety Board, Asiana Airlines Flight 214 sits just off the runway at San Francisco International Airport on Sunday, July 7. The Boeing 777 coming from Seoul, South Korea, crashed on landing on Saturday, July 6. Three passengers, all girls, died as a result of the first notable U.S. air crash in four years. Hide Caption 1 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – A photo showing the damaged interior of the aircraft was released by the NTSB on July 7. The flight carrying 291 passengers and 16 crew took off from Shanghai and stopped in Seoul before heading to San Francisco. Hide Caption 2 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – An investigator photographs part of the landing gear at the crash site in a handout released on July 7. Investigators believe that the pilots were flying too slow and too low as they neared the airport on July 6. Hide Caption 3 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – An investigator inspects the broken-off tail of the plane in a handout photo released July 7. The crash killed two people, injured 182 and forced the temporary closure of one of the country's largest airports. Hide Caption 4 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – An investigator stands near the tail of the plane in a handout photo released on July 7. The NTSB has ruled out weather as a problem and said that conditions were right for a "visual landing." Hide Caption 5 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Investigators approach the crash in a handout photo released on July 7. Hide Caption 6 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Fire crews attempt to quench the blaze on Saturday, July 6. Hide Caption 7 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Smoke rises from the crash site across the San Francisco Bay on July 6. Hide Caption 8 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Asiana Airlines Flight 214 remains on the runway on July 6. Hide Caption 9 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – A plane sits on the runway on July 6 while emergency crews tend to the crash site. Hide Caption 10 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – A helicopter flies above the wreckage on July 6 as people observe from across the waters of San Francisco Bay. Hide Caption 11 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Travelers at San Francisco International Airport look at the departures and arrivals board after Asiana Flight 214 crashed on July 6. The airport, located 12 miles south of downtown San Francisco, is California's second busiest, behind Los Angeles International. Hide Caption 12 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Kevin Cheng talks on his phone as he waits in the terminal after Asiana Airlines Flight 214 crash-landed on July 6. He said he was supposed to pick up students who were on board the flight from Seoul. Hide Caption 13 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Passengers wait for the British Airways counter to reopen at San Francisco International Airport on July 6. Hide Caption 14 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Police guard the Reflection Room at the San Francisco airport's international terminal, where passengers from Asiana Airlines Flight 214 were reportedly gathering after the crash landing on July 6. Hide Caption 15 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – People are escorted from the Reflection Room at the San Francisco International Airport on July 6. Hide Caption 16 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Traffic backs up on U.S. Route 101 South in San Francisco on July 6. The Bay Area airport was closed to incoming and departing traffic after the crash, according to the Federal Aviation Administration. Hide Caption 17 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – People look over the wreckage across a cove in San Francisco Bay on July 6. Hide Caption 18 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Deborah Hersman, chairwoman of the National Transportation Safety Board, speaks to the press at Reagan National Airport in Arlington, Virginia, before departing for San Francisco with an NTSB crew on July 6 to investigate the crash site. Hide Caption 19 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – The San Francisco Giants observe a moment of silence for those killed and hurt in the crash before their baseball game on July 6 against the Los Angeles Dodgers at AT&T Park in San Francisco. Hide Caption 20 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Crews comb the end of a San Francisco airport runway following the crash landing on July 6. Hide Caption 21 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – People in Seoul watch a news program reporting about the crash landing on July 6 in San Francisco. Asiana Airlines Flight 214 took off from Seoul earlier Saturday. Hide Caption 22 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – The plane crashed on July 6 around 11:30 a.m. (2:30 p.m. ET). Hide Caption 23 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – People walk past the wreckage of the plane's tail on July 6. Hide Caption 24 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – The burned-out plane remains on the runway on July 6. Passengers and crew members escaped down the emergency inflatable slides. Hide Caption 25 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Rescue workers tend to the crash site on July 6. Hide Caption 26 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Debris litters the runway on July 6. Hide Caption 27 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Airport shuttles arrive on the scene after the crash landing. Hide Caption 28 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Wreckage from the Boeing 777 lies on the tarmac on July 6. Hide Caption 29 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Crews surround the remains of the plane on July 6. Hide Caption 30 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Investigators pass the detached tail and landing gear of Asiana Airlines Flight 214 on July 6. Hide Caption 31 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – An aerial view shows the site of the crash landing between the runways on July 6. Hide Caption 32 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Smoke rises from the crash site on July 6 at the airport in San Francisco. Hide Caption 33 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – Fire crews work at the crash site at San Francisco International Airport on July 6. Hide Caption 34 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – The Boeing 777 lies burned on the runway after it crashed landed on July 6. Hide Caption 35 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – An aerial photo of the scene on July 6 shows the extent of the plane's damage. Hide Caption 36 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – The burned-out plane sits surrounded by emergency vehicles on July 6. Hide Caption 37 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – CNN iReporter Amanda Painter took this photo while waiting at the San Francisco airport on July 6. The entire airport has shut down and flights diverted to other airports. Hide Caption 38 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – iReporter Val Vaden captured this photo while waiting in a departure lounge at the San Francisco airport on July 6. Val observed the billowing smoke and emergency responders' rush in. Hide Caption 39 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – iReporter Sven Duenwald was at home on July 6 when he saw smoke rising into the air near the San Francisco International Airport. Hide Caption 40 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – iReporter Timothy Clark was standing on the eighth floor of the Embassy Suites Airport Hotel when he heard a loud crashing sound from outside. "My daughter told me she heard a plane crash. I used my camera to get a clearer view and I could see a dust cloud. Then people running from the plane, then flames," he said. Hide Caption 41 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – A photo provided to CNN by Eunice Bird Rah -- and shot by her father, who was a passenger on the plane -- shows flames and smoke bursting out of many of the aircraft's windows. Hide Caption 42 of 43 Photos: Plane crash-lands in San Francisco Plane crash-lands in San Francisco – David Eun, a passenger on Asiana Airlines Flight 214, posted this image to Path.com along with the message, "I just crash landed at SFO. Tail ripped off. Most everyone seems fine, I'm ok. Surreal..." It was one of the first photographs taken after the crash. Hide Caption 43 of 43

JUST WATCHED Video shows girl's body on runway Replay More Videos ... MUST WATCH Video shows girl's body on runway 02:15

JUST WATCHED See new video from Asiana crash Replay More Videos ... MUST WATCH See new video from Asiana crash 00:57

"Those injuries she received, she was alive at the time," San Mateo County Coroner Robert Foucrault said.

Ye's parents have filed a gross negligence claim against the city and county of San Francisco, arguing that the emergency responders who spotted Ye on the ground "failed to move her to a safe location, failed to mark her location; failed to protect her from moving vehicles in the vicinity of the aircraft where it was known that vehicles would be traveling; failed to alert commanders at the scene; and/or abandoned Ye Meng Yuan in a perilous location."

Green said the teenager's parents were devastated by her death.

"In China, they're really only supposed to have one child," he said. "This was the family's only child, a girl who was a star student, who was the focus of their lives. Everything that they did was poured into this girl and her future, and that was taken away because of some terrible mistakes and inaction by the firefighters."

The San Francisco Fire Department declined comment on the video, citing the pending claim. But in July, Fire Chief Joanne Hayes-White offered her department's "condolonces and apologies" to the Ye family.

"We're heartbroken," Hayes-White said. "We're in the business of saving lives ... There's not a lot of words to describe how badly we feel about it."

Two other people died when Asiana Airlines Flight 214 crash-landed at the San Francisco airport July 6. The National Transportation Safety Board said the jet descended in altitude faster than it should have, and had a slower forward speed than intended.