2 killed in Pleasant Grove head-on crash; suspected drunk driver faces manslaughter charges

Witness tackles suspect running away from deadly crash

A man is accused of drunk driving and killing two people following a crash in Dallas. A witness told police he tackled the driver, when he tried to run from the scene. The impact of the crash left one car unrecognizable.

DALLAS - A suspected drunk driver is in custody after police say he caused a head-on collision that killed two people in Dallas early Sunday morning.

2 killed, driver charged with intoxication manslaughter

An alleged drunk driver is in jail after police say he caused a crash that killed two people over the weekend.

What we know:

Officers responded to a major crash near North Jim Miller Road and Military Parkway in the Pleasant Grove area around 2 a.m. Sunday.

Investigators determined that 22-year-old Isaac Chacon was driving a pickup truck when he collided head-on with a blue sedan. One occupant of the sedan died at the scene, and a second victim died at a local hospital.

One victim has been identified as Adrian Marshall. The identity of the second victim has not been released.

Pleasant Grove crash

Dig deeper:

According to an arrest affidavit, a man and a woman witnessed the crash and worked together to prevent the suspect from fleeing. While the woman called 911, the man chased Chacon by car and then on foot, holding him until officers arrived.

At the hospital, an officer noted that Chacon’s breath smelled of alcohol. Although Chacon reportedly told police he was driving home from a party and had consumed only one beer, he refused to provide a voluntary breath or blood sample.

Police later obtained a warrant to test Chacon's blood. The results of that test are still pending.

What they're saying:

A woman who lives several blocks away from the scene heard the crash.

"I just started to go to sleep and all of a sudden, boom! And it was exactly 1:57 in the morning when he hit. And I thought, ‘Oh my God.’ I called the police and said I don't know where the wreck happened but I said I heard it on my camera and it was intense," Sherry Bowers said.

What's next:

Chacon was booked into the Dallas County Jail on two counts of intoxication manslaughter and two counts of collision involving death.