Kyle Rittenhouse posed for photos with Proud Boys at a Wisc. bar, prosecutors say, and wore a shirt that read 'Free as f---.'

Kenosha County District Attorney Michael Graveley said Tuesday that he had informed Blake of the news before holding a news conference to announce his decision.

Judge Bruce Schroeder granted Pierce's request Monday, Pierce said. Online court records do not indicate that a hearing ever took place.

Rittenhouse, 17, who faces multiple charges for allegedly shooting two protesters dead, is due back in court on Dec. 3 for a preliminary hearing.

Kenosha County prosecutors have also charged Rittenhouse with wounding a third man, Gaige Grosskreutz.

Sheriff's deputies in Illinois handed Rittenhouse, who's accused of killing two protesters, over to their counterparts in Wisconsin shortly after a judge on Friday approved the contested extradition.

Rittenhouse of Antioch, remains held in a juvenile detention centre in Lake County without bond due to pending criminal charges in Kenosha.

In court records filed late Thursday, Rittenhouse's attorneys argued that he was acting in self-defence and extraditing him to Wisconsin authorities would violate his constitutional rights.

Rittenhouse surrendered to police in his hometown of Antioch, Illinois, a day after prosecutors say he shot and killed two protesters and wounded a third on the streets of Kenosha on Aug. 25.

The accused Kenosha gunman faces two first-degree murder charges.