NORWALK, Calif. (KABC) — Two people, including a now-former California Highway Patrol officer, are facing murder charges in connection with a fiery chain-reaction crash that killed four people last July on the 605 Freeway in Norwalk.

“We today are bringing the most serious charges we can bring against the two perpetrators of the crimes that led to the deaths of these four individuals,” said Los Angeles County District Attorney Nathan Hochman during a press conference on Monday. “Those are the crimes of murder.”

The four victims were trapped inside a burning car on the 605 Freeway after a suspected drunk driver plowed into their disabled vehicle at more than 100 mph. All four people inside were killed, and the suspected drunk driver, 27-year-old Iris Salmeron of Bellflower, was arrested and charged with four counts of murder.

ORIGINAL REPORT: 4 killed in fiery chain-reaction crash on 605 Freeway in Norwalk; DUI suspect arrested

“She’s above the legal limit for alcohol consumption, and she crashes into the Nissan in the HOV lane, lighting the car on fire and horribly burning the four innocent victims inside the car,” Hochman said.

Salmeron isn’t the only person facing charges in the crash. Now-former CHP officer Angelo Rodriguez was also arrested and is also facing four counts of murder. He was terminated by CHP following the crash.

Hochman says the Nissan was stranded to begin with because Rodriguez rear-ended it on the freeway while traveling 130 mph. The crash disabled the car, leaving it stranded, but the four people inside were still alive, prosecutors say.

“He is driving at over 130 mph. He is driving without his lights or siren on, and without justification to be driving at that speed,” Hochman said.

Hochman says Rodriguez did nothing to prevent another driver from hitting the disabled vehicle, which is exactly what ended up happening. Rodriguez allegedly pulled his vehicle to the shoulder and turned off the lights, sitting on the shoulder for three minutes.

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Investigators say Rodriguez then exited the freeway and reported a crash involving a CHP vehicle, but did not say that he was the one involved. When turned around to return to the scene, prosecutors say it was too late. That’s when Salmeron slammed into the Nissan.

“I think it’s incomprehensible that you would be driving at 130 mph with no lights and sirens for no emergency. Just doing it,” said Darren Aitken, the attorney for two of the victims’ families. “And it’s incomprehensible that after causing this collision, you would just abandon these poor kids to their fate. They are trained to secure a scene, make it as visible as possible, to protect the cars with their heavy cars if they can, and none of that was even done.”

Hochman says Rodriguez already had two prior on-duty crashes on his record and tried to cover this one up by failing to immediately report the crash — turning the lights in his cruiser off and sitting on the shoulder for three minutes before driving away.

“When you turn your lights off, you then disable the audio system inside of the patrol car,” Hochman said. “So for the next three minutes, he is sitting on the right-hand side of the road.”

The victims — Julie Hamori, Armand Del Campo, Jordan Partridge and Sam Skocilic — were all longtime friends and were heading home from a concert at the time of the crash. They range in age from 22 to 24 years old.

Prosecutors in the case are asking bail to be set for both suspects at $8 million. If convicted, both suspects could spend the rest of their lives in prison. They are expected to be arraigned on Tuesday.