Updated at 5 p.m. to include comments from the Dallas Police Association president.

A Farmers Branch police officer has been arrested in the shooting death of a 35-year-old man June 12 in a shopping center parking lot in northwest Dallas.

Officer Michael Dunn (Seagoville Police Department)

Officer Michael Damien Dunn, 43, turned himself in Wednesday to the Seagoville Police Department where he was arrested on a murder charge and booked into the city jail, police Capt. Steve Davis said Thursday. He was released on $150,000 bail.

A Dallas County grand jury decided late Wednesday to indict Dunn in the death of Juan "Johnny" Moreno, the district attorney's office said in a statement.

Dunn, who was placed on administrative leave, could not be reached for comment.

Speaking at police headquarters, Farmers Branch Police Chief David Hale expressed condolences for the Moreno family but also noted that Dunn's life "has been forever changed."

"We all want a clear perspective as to what happened that evening," the chief said. "We want the truth."

Hale said Dunn has cooperated fully and turned himself in to authorities even before the indictment becomes official Friday.

Carlos Quintanilla, a liaison for the Moreno family, said the Dallas County district attorney's office made a "historic" effort to expedite the process of getting the case before a grand jury. At a news conference outside the family's home, the Acción America activist praised the grand jury for returning an indictment.

"This sends a message that officers do not have the right to kill somebody," Quintanilla said.

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Juan Moreno Sr., the father of the man who was fatally shot, thanked the media and the Dallas County district attorney's office after the news of Dunn's indictment.

"Justice was done, like it was supposed to be," he said outside his home in Farmers Branch.

Moreno said he wanted Dunn removed from the Police Department.

"I don't think he deserves to be a policeman because he acted the way he acted," he said.

Two weeks ago, Farmers Branch police began monitoring the pickup Moreno was driving after it was reported stolen in Irving.

About 7 p.m. on the day he died, Moreno was inside the truck with two other people, parked in the 11400 block of Emerald Street, near Royal Lane west of Interstate 35E.

As officers approached the truck, Moreno pulled out of the parking space, police said. One of the officers opened fire and hit Moreno.

He was taken to Parkland Memorial Hospital, where he died. The two other people in the truck were not injured.

The murder indictment for Dunn came two weeks after the shooting. In the shooting death of Botham Jean by former Dallas Officer Amber Guyger, a grand jury indicted her on a murder charge nearly three months after Jean's death.

District Attorney John Creuzot said in a written statement Thursday that he had promised to present officer-involved shooting cases to grand juries "as quickly as possible."

"The intent was to prevent these cases from lingering in the system for six months or longer," Creuzot said in the statement. "We want to either clear officers so they can get back to work; or when a grand jury determines probable cause, proceed with a trial before a jury."

Dallas Police Association President Mike Mata raised concerns about the timeline of the investigation, saying it's common for police shooting investigations to take up to 45 days. Dunn was indicted 15 days after the shooting.

At a news conference Thursday afternoon, Mata said the expedited process to get Dunn's case before the grand jury was politically motivated.

"It's a political machine that led this," he said. "I know for a fact that they were trying to prevent any type of social unrest or protest."

Mata said a hasty investigation could lead to mistakes that damage the public's trust in police.

"Giving it to the grand jury faster may have made a few people happy for a while, but if it doesn't work out how they want it to, what are you going to do then?" he said. "We have to have a process."

Mata said one factor that made the fatal shooting of Moreno different from other police shootings was that it was captured on video.

"Well, I got news, there's going to be no perfect police shooting," he said. "It's never going to look good, and I will admit, that video does not look good."

Video of the shooting obtained by WFAA-TV (Channel 8) shows the officer pointing his gun at the pickup Moreno was driving as the truck veered around him.

Juan Moreno Sr ( right) and Carlos Quintanilla speak to the media outside the Moreno home in Farmers Branch on Thursday, June 27, 2019. Moreno's son, Juan Moreno, was shot and killed by a Farmers Branch police officer who has been indicted for murder in the shooting. (Brian Elledge / Staff Photographer)

Dallas police conducted the investigation because the shooting happened in Dallas. The department's Special Investigations Unit referred a murder charge to the grand jury last week.

Dunn is the second officer in the department to face a murder charge in recent years.

Former Farmers Branch officer Ken Johnson, 39, was off-duty in March 2016 when he chased down and killed 16-year-old Jose Cruz, whom he caught breaking into his SUV.

Johnson was convicted of murder and sentenced to 10 years in prison. He also got 10 years' probation for an aggravated assault charge for seriously wounding Cruz's friend, who was also 16.

Staff writer Maria Elena Vizcaino contributed to this report.