Updated at 5 p.m.: Revised to include additional details throughout.

The family of a Dallas man who was killed in his own home expressed relief but little joy Friday after the former police officer who shot Botham Jean was indicted on a murder charge.

Amber Guyger, 30, was booked into the Mesquite Jail on Friday and quickly released on bond.

"We really are not happy," his father, Bertrum Jean, said, "but we take consolation, we take comfort at this time."

A Dallas County grand jury delivered the indictment against Amber Guyger after weighing the evidence against the fired Dallas officer Monday and Wednesday.

Guyger, 30, initially had been arrested on a manslaughter charge, three days after the Sept. 6 shooting.

Her attorney, Robert Rogers, said Friday that he wasn't surprised by the indictment, considering "all the political pressure and the emotion that seemed to be injected into the process," but that he didn't think the law supported a murder conviction.

"Two innocent lives have been forever changed," he said. "I feel for Botham Jean's family, and I can't imagine the pain they are going through. But when you look at the law, this was a tragic mistake.

"Amber Guyger felt she was in her apartment," he added. "I don't think there is any dispute to that. She was justified in her actions."

Guyger turned herself in at the Mesquite jail about 1 p.m. Friday to be booked on the murder charge, Mesquite police Lt. Stephen Biggs said. She quickly posted a $200,000 bond, nearly three months after posting a $300,000 bond on the original manslaughter charge.

The new count appeared to be only the second murder indictment of a Dallas police officer in at least 45 years, courthouse observers said.

Darrell L. Cain killed 12-year-old Santos Rodriguez while playing Russian roulette with the handcuffed boy in 1973. Cain was sentenced to five years for murder and served half that long.

Botham Jean was shot and killed in his apartment a few blocks from Dallas police headquarters. (Instagram)

When Jean, 26, was killed, he had been watching football in his apartment a few blocks north of police headquarters in the Cedars. Guyger, who had just finished her police shift, entered and shot him.

She told authorities she had mistaken Jean's apartment for her own and believed he was a burglar. Jean lived in the apartment directly above Guyger's at the South Side Flats complex.

Protesters rallied for weeks in Dallas after Jean's death. He was buried in his native St. Lucia on Sept. 24, the same day Guyger was fired from the Police Department.

Jean, who grew up on the Caribbean island, came to the U.S. to attend Harding University in Arkansas and later moved to Dallas for a job at PwC as an accountant. He had hoped one day to return to St. Lucia and run for prime minister.

Jean's parents spoke after a news conference where Dallas County District Attorney Faith Johnson announced the murder indictment.

Allison Jean, Botham's mother, pumped her fist when Johnson announced that Guyger would now face a murder charge.

She said she knew her son was a victim of murder "from the very start" and thanked the community and Johnson's office for securing the new charge against Guyger.

Allison Jean, Botham Jean's mother, spoke at a news conference Friday. "I look forward," she said, "to the next test, which is a conviction ... a proper penalty so she can reflect on what she has done." (Shaban Athuman / Staff Photographer)

"I truly believe that she inflicted tremendous evil on my son," Allison Jean said. "I look forward to the next test, which is a conviction ... a proper penalty so she can reflect on what she has done."

Bertrum Jean said the family was relieved by the grand jury's decision but hoped for more comfort to come.

"It is such a hard thing to go through," he said. "We miss our boy dearly."

Sammie Berry, who was Jean's pastor at Dallas West Church of Christ, said the taking of the young man's life was more than just an "unfortunate situation or a perfect storm."

"We want the entire world, the entire community, to pray for the Jean family as they go through the trial and through that process," Berry said.

1 / 4From left: Botham Jean's mother, Allison Jean; father, Bertrum Jean, and sister, Allisa Findley, listened with the family's attorney, Lee Merritt, as District Attorney Faith Johnson spoke at a news conference Friday.(Shaban Athuman / Staff Photographer) 2 / 4Allison Jean, center, Botham Shem Jean's mother, speaks at a news conference Friday, Nov. 30, 2018, in Dallas. Amber Guyger, a former Dallas police officer, was indicted Friday, on a murder charge in the killing of her unarmed neighbor Botham Jean in his own apartment, after she said she mistook his apartment for her own. (Shaban Athuman/The Dallas Morning News via AP)(Shaban Athuman / AP) 3 / 4Allisa Findley, Botham Shem Jean, wears a bracelet with the Day Jean was killed during a press conference at the Frank Crowley Courts Building in Dallas on Friday, November 30, 2018. Botham Shem Jean was shot by former Dallas police officer, Amber Guyger, who was off duty, in his apartment on September 6, 2018. On Friday the grand jury voted to indict her on a murder charge. (Shaban Athuman/The Dallas Morning News)(Shaban Athuman / Staff Photographer) 4 / 4Bertrum Jean, Botham Jean's father, gives remarks at the Frank Crowley Courts Building in Dallas on Friday, November 30, 2018. Botham Shem Jean was shot by former Dallas police officer, Amber Guyger, who was off duty, in his apartment on September 6, 2018. On Friday the grand jury voted to indict her on a murder charge. (Shaban Athuman/The Dallas Morning News)(Shaban Athuman / Staff Photographer)

Johnson said it would be at least a year before the case against Guyger goes to trial. She compared it to the trial of Roy Oliver, a Balch Springs officer who killed 15-year-old Jordan Edwards by firing into a car full of teenagers. In Oliver's case, 16 months passed between the shooting and the trial.

Oliver, who was fired from the Balch Springs police force, was found guilty of murder in August and sentenced to 15 years in prison.

Johnson said that before the Guyger case went to the grand jury, her office did "all kinds of lab testing" and conducted more than 300 interviews with witnesses.

"What I'm saying to you is we did a full, complete presentation to the grand jury," she said.

Johnson disputed criticism by some that it took too long for the case to be seen by a grand jury, saying she wanted to make sure jurors had all the information they needed to make their decision.

"I was not bowing down to any political pressure to try to do it earlier, because that was not justice," Johnson said. "Justice was to do it when we did it."

She said she was confident that her successor, John Creuzot, would represent Dallas County well when his administration tries Guyger.

Creuzot will oversee the prosecution because he defeated Johnson in the Nov. 6 election. He said Friday that he was not yet up to speed on the facts of the Guyger case but that "I always thought the appropriate charge was murder."

Creuzot said he was finishing up his remaining responsibilities as a defense attorney to a few more clients before talking with prosecutors about specific cases. He said that Johnson had offered to update him but that he was waiting until he had no conflicts with the cases in which he represents defendants.

Dallas Police Chief U. Renee Hall said in a statement that everyone in the department felt "anguish about this difficult and tragic" shooting. She said the department was working to make changes.

"We recognize and understand the national discord regarding the relationship between law enforcement and the communities we serve," the chief said. "We have developed the framework for policy change, have supported the restructuring of the Citizen Review Board, pushed to exceed the basic requirements of implicit-bias training, and have relied on input from our employee advisory and community advisory boards. We have more work to do and we remain committed to improving our relationships throughout the city."

The case has been assigned to state District Judge Tammy Kemp. A former prosecutor who took the bench in 2015, Kemp ordered Guyger to surrender her passport Friday and not to travel outside the state without approval, according to court records. She's also forbidden to use alcohol or drugs.

Kemp was just elected to a second term. In 2013, she was the lead prosecutor in a case in which a Dallas County jury gave a death sentence to a man who drowned two sons in a pungent, murky creek to get back at their mother.

State District Judge Tammy Kemp, who will preside over the case, ordered Amber Guyger to surrender her passport Friday and not leave the state. (Staff photo)

The grand jurors​ could have voted to indict Guyger on a manslaughter charge, the count she was initially arrested on, or another charge, or they ​could ​have decided she should face no charges at all.

Because grand jury proceedings are secret, it is unknown exactly what evidence prosecutors presented to the jurors. But attorneys for the Jean family said both Allison Jean, Botham's mother, and his sister Allisa Charles-Findley testified.

After hearing evidence Monday and Wednesday​, ​grand jurors left that night without voting on whether to indict Guyger​. They returned Friday and voted. ​

Court records show the indictment was a "grand jury referral," indicating that prosecutors sought a murder count instead of the manslaughter charge on which Guyger was arrested by Texas Rangers.