Detectives say his brutal crime was so complex they believe he may have struck before and they are asking any possible victims to come forward.
The suspect, authorities say, is behind the violent kidnapping of a 21-year-old woman.
"A senseless, brutal and horrifying crime that resulted in a near-death," said L.A. County Sheriff Lee Baca.
Detectives from the L.A. County Sheriff's Dept. Major Crimes Bureau say DeQiang Song tried to strangle the victim, and when that didn't kill her, he slit her throat then left her for dead in the middle of the desert.
"She's alive because she had the determination and the will to live," said L.A. County Sheriff's Detective Michael Sloop. "She was severely injured, easily could have gone another direction but she forced herself to get up and walk and get help, and that's why she is alive today."
Song allegedly met his victim at a social club gathering at a karaoke bar in San Gabriel. One week later they agreed to go shopping.
"Following their trip to the mall the suspect, Song, fabricated a story to divert their outing to the Apple Valley area," said Sloop. "Already inside the suspect's vehicle were the instruments that he later ultimately used to commit the crime of kidnapping and attempted murder of the victim."
Investigators say after attacking the victim, he used her mobile phone to call her father and demand a $100,000 ransom.
But the father notified authorities and hours later Song was arrested in San Gabriel, seconds after showing up to pick up the money.
"We believe that he is solely responsible for this case, but there may be other victims or other crimes that he was involved in," said Sloop. "So we're asking the public to assist us if they know of something."
Song's car is a black, four-door 2009 Toyota Venza with an Illinois license plate number H897160. But authorities also found a second Illinois license plate in the car.
Song is now behind bars facing charges of kidnapping and attempted murder. If convicted, he could be sentenced to life in prison without possibility of parole.
The 21-year-old victim she has been released from the hospital and is now recovering at home.
If you recognize Song or his car and believe you may have been a victim of Song, you're asked to call L.A. County Sheriff's detectives at (323) 267-4800.
