Homicide

Oklahoma brothers charged with 5 counts of murder in stabbing deaths of parents, 3 siblings

  • FILE - In this July 23, 2015, file photo provided by the Broken Arrow Police Department, 18-year-old Robert Bever, a suspect in the stabbing deaths of an Oklahoma family in Broken Arrow, Okla., is pictured in Broken Arrow, Okla. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. (Broken Arrow Police Department via AP, File)

    FILE - In this July 23, 2015, file photo provided by the Broken Arrow Police Department, 18-year-old Robert Bever, a suspect in the stabbing deaths of an Oklahoma family in Broken Arrow, Okla., is pictured in Broken Arrow, Okla. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. (Broken Arrow Police Department via AP, File)  (The Associated Press)

  • In this photo provided by the Tulsa County Jail, Michael Bever is pictured in a booking photo. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. Tulsa County District Attorney Steve Kunzweiler, whose office filed the charges, has said Michael Bever will be tried as an adult. (Tulsa County Jail via AP)

    In this photo provided by the Tulsa County Jail, Michael Bever is pictured in a booking photo. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. Tulsa County District Attorney Steve Kunzweiler, whose office filed the charges, has said Michael Bever will be tried as an adult. (Tulsa County Jail via AP)  (The Associated Press)

  • FILE - In this Friday, July 24, 2015 file booking photo provided by the Tulsa County Sheriff's Office, Robert Bever is pictured. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. (Tulsa County Sheriff's Office via AP, File)

    FILE - In this Friday, July 24, 2015 file booking photo provided by the Tulsa County Sheriff's Office, Robert Bever is pictured. First-degree murder charges were formally filed Friday, July 31, 2015 against Robert Davis Bever, 18, and Michael John Bever, 16, both accused in the July 23, 2015 stabbing deaths of their parents and three siblings. (Tulsa County Sheriff's Office via AP, File)  (The Associated Press)

First-degree murder charges have been formally filed against two Oklahoma brothers accused in the stabbing deaths of their parents and three siblings.

Tulsa County District Attorney Steve Kunzweiler's office filed the charges Friday against 18-year-old Robert Davis Bever and 16-year-old Michael John Bever. Court records did not show whether the brothers are represented by an attorney.

Each of the brothers is charged with five counts of first-degree murder and one count of assault and battery with intent to kill. The assault charge involves multiple stabbings of a 13-year-old sister who survived the attack.

They are accused in the July 22 deaths of parents David and April Bever and siblings Daniel, Christopher and Victoria. Kunzweiler's office has said Michael Bever will be tried as an adult.