ALPENA — The man a jury said killed Brynn Bills and Abby Hill has filed an appeal.

Court records provide no details about what Brad Srebnik will argue in the appeal and his court-appointed attorney, Rachel Wolfe, of Hazel Park, did not return a message seeking comment.

Srebnik, 37, has maintained his innocence.

The Michigan Attorney General’s Office and Alpena County Prosecutor Cynthia Muszynski accused Srebnik of strangling Bills and shooting Hill in the back of the head in the late summer and early fall of 2021.

After about five hours of deliberations, a jury on Feb. 8 found Srebnik guilty of two counts of premeditated murder, weapons charges, and disinterment and mutilation of a body.

Judge Alan Curtis on March 14 sentenced Srebnik to life in prison.

A second man, Joshua Wirgau, 36, was originally charged with murder alongside Srebnik. However, Wirgau struck a deal with prosecutors and agreed to plead guilty to accessory after the fact and disinterment and mutilation of a body in the death of Bills and involuntary manslaughter in the death of Hill and to testify against Srebnik. In exchange, prosecutors dropped charges of first-degree murder and felony firearm.

Judge Ed Black on Feb. 22 sentenced Wirgau to up to 30 years in prison.

Srebnik and Wirgau both are currently housed at the Charles Egeler Reception and Guidance Center near Jackson, where inmates go for intake processing before being assigned to a prison.