Ernest Milligan, 57, (pictured) killed himself one day after he shot 13 rounds into a car with three teenagers inside in Galveston, Texas, on Friday evening. He hit two teen boys, but the teen girl with them was not injured

A man killed himself one day after he shot 13 rounds into a car with three teenagers inside during a road rage incident.

Ernest Milligan, 57, shot two of the teens after he got into a shoving match with them because of a fender-bender in Galveston, Texas on Friday evening.

The next day, Milligan was found dead by police with a gunshot wound to his head in a parking garage of the hospital where the teens were recovering.

The teens, two male and one female, were driving a white Mazda when Milligan pulled in front of them in his green Plymouth and slammed on his brakes.

The girl, who was driving and not shot, accidentally rear-ended Milligan. After pulling over, all three teens and Milligan got out of their cars.

They quickly got into a verbal altercation before Milligan pushed the driver, witnesses told police.

The two boys then got into a 'shoving match' with Milligan, police said.

Eventually the teens all returned to their car while Milligan took out a .40 caliber Glock handgun from his car and shot 13 rounds into the windshield of the teens' Mazda at around 7.25pm.

He hit the two boys, one who is 16 years old. Both were taken to the University of Texas Medical Branch.

The driver, the sister of the 16-year-old, was uninjured.

Milligan was found dead by police with a self-inflicted gunshot wound to the head Saturday afternoon. His body was in his car in the parking garage of the University of Texas Medical Branch (pictured), where the two teens he hit were recovering

The 16-year-old, who had been hit twice, was in critical condition and the other, who had been hit once, was stable, police said.

The teen who was in stable condition has since been released from the hospital, KHOU reported. The 16-year-old is still recovering in the hospital, but is now in stable condition.

Milligan fled the scene, but a witness followed him and took a picture of his car and license plate. Using that picture, police were able to identify Milligan and request a warrant for his arrest.

On Saturday around 3pm, officials found Mulligan sitting in his Plymouth in the parking garage of the UTMB, where the teens were recovering.

He had a self-inflicted gunshot wound to his head from a .40 caliber Glock pistol that was still in the car with him, police said.

The initial road rage incident happened on Friday around 7.25pm at this intersection in Galveston. Milligan pulled in front of the three teens' car and slammed on his brakes, causing the driver to hit him. When all four got out of their cars, they shouted and started shoving each other before Milligan took out his gun and shot the two teen boys, witnesses said

Officials are still investigating the incident to confirm that the gun in Milligan's car with him is the same one he used to shoot the teens.

The Galveston Police Department have said they are no longer looking for a suspect.

Police said Milligan did have a criminal record, but it was not a violent record, KHOU reported.

The mother of the 16-year-old boy and the driver told the outlet: 'I’m so thankful that they’re alive. My kids were innocent in this.'