ALPENA COUNTY, Mich. - Two northern Michigan men have been charged in the deaths of two women in 2021, according to Michigan Attorney General Dana Nessel.

Brad Srebnik, 36, and Joshua Wirgau, 35, both of Alpena, have been charged with first-degree premeditated homicide.

Srebnik was charged with first-degree premeditated homicide for 17-year-old Brynn Bills and 34-year-old Abby Hill.

Wirgau was charged with first-degree premeditated homicide of Hill.

In August 2021, Michigan State Police opened a criminal investigation into the disappearance of Mio resident Brynn Bills.

In September, investigators determined Srebnik, Wirgau, and Hill were involved in Bills' disappearance.

Hill was allegedly the last person to see Bills alive.

According to eyewitness accounts and Facebook messages, Bills was picked up by Hill in the early morning hours of August 2, 2021.

Bills was then killed by Srebnik and her body was buried in Wirgau's backyard shortly after she was last seen alive, according to the prosecution.

On September 25, 2021, Srebnik, Wirgau, and Hill were dropped off in a remote part of Alpena.

Prosecutors believe Hill was then killed in the area to prevent her from revealing information about Bills' death.

Hill's body was left where she was killed, according to reports.

Attorney General Nessel and Alpena County Prosecutor Cynthia Muszynski announced the charges against the two men during a press conference in Alpena Wednesday morning.

In total, Srebnik is charged with the following:

• Two counts of first-degree premeditated homicide
• One count of disinterment and mutilation of a dead body
• One count of felony firearm - second offense
• One count of felony firearm possession

Wirgau is charged with the following:

• One count of first-degree premeditated homicide
• One count of disinterment and mutilation of a dead body
• One count of being an accessory to a felony
• One count of felony firearm - second offense
• One count of felony firearm possession

Both men are habitual offenders, according to reports.

Srebnik and Wirgau are both currently serving two years in the Michigan Department of Corrections after pleading guilty to felony firearm possession charges in February 2022.

They will be arraigned in court on Thursday.