Hearing set for 2 accused of killing their Oklahoma family

Two Oklahoma teenagers are due in court to face accusations they stabbed their parents and three siblings to death in a rampage last summer.

Eighteen-year-old Robert Bever (BEH-vuhr) and 16-year-old Michael Bever have pleaded not guilty to first-degree murder. Prosecutor Steve Kunzweiler said they planned the crimes, but hasn't discussed a motive.

The teenagers' father was stabbed 28 times, while their mother had at least 48 wounds. Two family members survived — a toddler and a teenage girl. The girl plans to testify for prosecutors at Tuesday's preliminary hearing.

According to search warrants, one brother told police plans for the killings were stored on a computer thumb drive at the family home in Broken Arrow, a Tulsa suburb.

A judge rejected Michael Bever's request to be tried as a juvenile.