Former Minneapolis police officer Derek Chauvin on Thursday filed an appeal of his murder conviction in the death of George Floyd.

Chauvin's appeal to the Minnesota Court of Appeals came 90 days after his June 25 sentencing on the last day he could have done so, according to court documents. He was convicted of second-degree unintentional murder, third-degree murder and second-degree manslaughter.

Chauvin raises 14 issues with his trial, the Star-Tribune reports.

He argues that the state committed "prejudicial prosecutorial misconduct" and lists several issues he has with the jury. Chauvin says that the court under Judge Peter Cahill "abused its discretion" when it denied his motion for a change of venue, declined to sequester the jury, denied him a new trial due to "juror misconduct" and did not allow him to strike "clearly biased jurors" from serving on the jury.

He also argues that Cahill erred when he declined to force Morries Hall to testify for the defense. Hall, who was Floyd's passenger the day he died, invoked his Fifth Amendment right against self-incrimination to avoid doing so.

Chauvin also argues that the court was wrong when it permitted the prosecution to add a third-degree murder charge and that the court gave instructions to the jury that "materially misstated the law."