Moment hit-and-run driver backs into 91-year-old woman, gets out to check on her - and then drives off as she dies on sidewalk

Surveillance footage captured the horrifying moment a driver ran over and killed a 91-year-old woman on her morning stroll, got out of the truck to check on her and then drove off. 

Soon Kim, 91, a mother and grandmother who immigrated to Los Angeles from Korea 30 years ago, is the victim, according to family.    

Surveillance footage released by the Los Angeles Police Department shows Kim taking a leisurely walk with her walker in the University Park neighborhood of South Los Angeles on Monday morning. 

Stroll Down For Video: 

Moments before 91-year-old Soon Kim is killed by a hit-and-run driver who flees the scene 

Surveillance footage shows the hit-and-run driver exit her vehicle, see an injured Kim in the roadway, and drive off 

At one point, Kim is turned away from a white pickup truck backing out of an alley. 

The pickup appears to have a pile of mattresses stacked in the cargo bed potentially blocking the driver's back view. 

The driver, identified as a woman by police, is captured backing up 'unsafely' and running over Kim.

At one point, she stops and drives forward, running over Kim again, before getting out of the vehicle. 

Once out of the vehicle, the driver looks at Kim on the pavement, then gets back into the truck and moves her car out of the road.

Again, she exits the truck, and stands near the vehicle for about three minutes before getting back in and driving off, LAPD said. 

The driver does not appear to offer assistance to the wounded grandmother.

Kim was later taken to a local hospital where she died from her injuries, police said. 

Kim's grandson, Hyun Cho, said Kim's greatest love was her family and she enjoyed cooking for them

91-year-old Soon Kim was a mother and grandmother who immigrated to Los Angeles from Korea 30 years ago

Kim (pictured left) was described as 'fiercely independent' by her grandson's wife Susan Cho

Kim's grandson, Hyun Cho, told KTLA News that his grandmother's greatest love was her family and that she enjoyed cooking for them.

'She was very fiercely independent,' Hyun's wife, Susan Cho, told KTLA. 'She lived by herself with no complaint. She enjoyed her independence.'

Susan Cho is pleading with neighbors to come forward with information regarding the driver, who she believes is well known in the area. 

'We understand that the woman that struck her is someone known in the neighborhood,' Susan Cho said. 'People recognized the car and that she had sort of a regular routine of putting up mattresses and other things in the area … It gives us some hope that she may be found.'

Police are offering a $50,000 reward for anyone who provides information that leads to the arrest of the driver, who is still at large.