UPDATE- As of Thursday the man has been identified as 56 year-old Samuel Gonzales
His cause of death is waiting on toxicology results.
PROSSER, Wash. -- A man is now dead after a four hour standoff with police.
Yakima police originally tried to pull the driver over because he was speeding in a stolen car.
The chase went through Sunnyside, and Prosser, with authorities trying a number of different tactics to stop the man.
During the pursuit, an officer saw the driver holding a pistol in his hand.
The 56-year-old driver, from Grandview, finally come to a stop in an orchard outside of Prosser on Snipes Road.
The man barricaded himself inside the car, and police negotiated with the driver for almost four hours to surrender peacefully.
The SWAT team was called in to assist with the situation.
Benton County Sheriff's say, as authorities were taking the driver into custody he became uncooperative and a taser was used.
Deputies say moments later, the suspect stopped breathing and officers on scene started CPR.
The driver was rushed to a nearby ambulance, but medics later pronounced the driver dead.
Inside the vehicle, officers located pills, a meth pipe, other drug paraphernalia, and the pistol.
Deputies say the investigation has been turned over to the special investigations unit.
We'll continue to follow this story as more information becomes available.