MILPITAS (CBS SF) — A Milpitas man shot and killed on Interstate Highway 680 in Milpitas Monday night has been identified as 30-year-old Matthew Rios, according to the Santa Clara County medical examiner’s office.

California Highway Patrol officers responded to northbound Highway 680 north of Landess Avenue at about 10 p.m. to find a vehicle in the center median.

Rios was inside the vehicle and appeared to have been shot, according to CHP Officer Ross Lee.

“As we responded on scene we found a vehicle in the center median,” Lee said. “There was a sole male occupant seated in the driver’s seat who did appear to have been struck by gunfire. He was unresponsive.”

Attempts to revive Rios were unsuccessful. He was declared dead at the scene.

“I went to his work, he’s supposed to be home at 9:45, but he didn’t come home,” Madonna Simmons, Rios’s mother, told KPIX 5. “I didn’t hear anything and I have a bad, bad feeling–something is wrong, something is really going on out there.”

A family photo of Rios next to a candle (CBS)

That’s when Simmons turned onto I-680 and saw a group of flashing patrol lights near the Landess exit.

“I saw, like, traffic on the other side and I turned around, I exit on the next exit and I see a lot of cops, and I pulled over to the right and I said, ‘That is my car.’ They said, ‘How do you know that it’s your car?’” Madonna recalled.

Despite seemingly insurmountable odds, Simmons wants to see her son’s killer prosecuted.

“Whoever is responsible for this, they have to pay for justice. My son is not going to rest. They have to pay the consequences.”

No information has been released regarding a possible suspect.

The northbound lanes of 680 were shut down for several hours while officers searched the area for any evidence in the shooting. The lanes were reopened at around 4 a.m.

The CHP was asking anyone with information about the shooting to contact their San Jose office at 408-467-5400.