Yadira Alvarez killed, 3 people injured, Giovanni Peña arrested after single-vehicle crash on Somerset Boulevard in Paramount, California

Authorities said a female passenger who was ejected from the vehicle was pronounced dead at the scene. The cause of the crash was unknown.

Four people were in the vehicle, investigators said. The male driver was taken to a local hospital and was booked on suspicion of vehicular manslaughter.

Four people were in the car. The male driver was taken to a hospital and then arrested on suspicion of vehicular manslaughter.

Deputies identified the driver as Giovanni Peña and family identified the passenger as his girlfriend of nearly 10 years, Yadira Alvarez

Peña was taken to the hospital for injuries. Alvarez died at the scene - just a block away from her grandma's home, according to family. 

Neighbors said Alvarez' grandmother lived in the area and Alvarez attended University of California Irvine where she majored in Criminology.