WEST ODESSA - On Saturday night, Ector County Sheriff's Deputy David Escudero got the call to respond to an emergency.
He was rushing down University in West Odessa in an unmarked patrol car when a Ford Explorer at a stop sign on Westridge, for whatever reason, failed to yield, that Explorer pulled out in front of Escudero.
"They failed to yield the right of way, the deputy's unit struck the vehicle, the vehicle rolled over, ejecting the driver," DPS Trooper John Barton, said.
Now skid marks and shattered debris are all that's left of the crash.
The driver of the Explorer, 43-year-old Anthony Neel, died after getting thrown out of his truck.
His passenger, 43-year-old Brenda Madrid has now been flown to University Medical Center in Lubbock and is listed in critical condition.
Escudero is listed in serious condition at Medical Center Hospital with a broken leg and shoulder.
Now DPS tells NewsWest 9, their investigation will be why Neel didn't yield.
"If they saw the unit, if there was alcohol involved, what the status was prior to, it's a detailed investigation," Barton said.
At the moment, it's unclear whether or not Escudero had his lights or siren on as he drove down University. That's what troopers will take a look at when they interview the injured passenger and return to the scene.
DPS officials say it's possible that a camera in Escudero's car could have captured whether or not the lights or sirens were on at the time of the crash.
Whatever reason why the Explorer pulled out in front, by distraction or intoxication, is still under investigation. Barton said it may take a week to find out what happened.