Police in Ferguson, Missouri on Friday identified Darren Wilson as the officer who fatally shot unarmed 18-year-old Michael Brown last weekend, launching days of protests against police brutality that were met with excessive, militarized force until Thursday, when state troopers took control of the police department.

Ferguson police chief Thomas Jackson said Wilson, who was a six-year veteran on the force, had not had any prior disciplinary actions taken against him.

“A lot of the stakeholders had a big meeting conversation yesterday, and then yesterday evening, and we made the determination that today is the day,” Jackson said during a press conference. “Nothing specific went into that decision, but we feel that there’s a certain calm,” he said. “There’s a huge outcry from the community.”

Jackson had previously withheld Wilson’s name, claiming that the officer had been threatened on social media.

Following the brief press conference, Jackson refused to take questions or disclose any other information about Wilson or his work history.

St. Louis County Executive Charlie Dooley said on Friday that he will askMissouri Attorney General Chris Koster to appoint a special prosecutor for the case, rather than current St. Louis County Prosecutor Bob McCulloch, after public criticism of the county’s response to Brown’s shooting, as well as the subsequent protests and police crackdowns. Dooley said McCulloch was biased in favor of police officers. Paul Hampel, a reporter with the St. Louis Post-Dispatch, said McCulloch told him during a phone interview that Missouri Governor Jay Nixon “denigrated the men and women of the County Police Department and what they’ve done” by replacing them with troopers from the Missouri Highway Patrol, who helped ease tensions and protect the protesters.

“The county executive believes Bob McCulloch is biased and shouldn’t handle this case,” said Pat Washington, Dooley’s spokeswoman.

In addition to naming Wilson as the officer who killed Brown, Jackson also released a police report that names Brown as a suspect in a nearby store robbery, a call that Wilson had also responded to. Surveillance footage accompanying the report allegedly shows Brown taking a box from the counter and shoving the store clerk when he steps in front of the exit, seemingly to prevent Brown from leaving.

Brown’s family questioned the timing of the announcement, noting that it was irrelevant to the case and calling it an attempt to assassinate Michael’s character. In a statement, they said that were “beyond outraged at the devious way the police chief has chosen to disseminate piecemeal information in a manner intended to assassinate the character of their son.”

“We don’t care what happened before that point,” said Anthony Gray, one of the family’s attorneys. “It’s irrelevant… Why did you shoot this unarmed teenager who had his hands in the air, period?”

Benjamin Crump, another of the Brown’s attorneys, who also represented Trayvon Martin’s family during George Zimmerman’s murder trial, said the release of the robbery allegations were an example of “the old game of smoke and mirrors.”