The Oklahoma State Bureau of Investigation (OSBI) took control of a crime scene near Henryetta where seven people were found shot dead last week at a property in Okmulgee County.

“The OSBI is now the lead agency in the case, and the investigation is ongoing,” OSBI interim public information officer Gerald Davidson said Monday.

The agency took over the investigation over the weekend after District Attorney Carol Iski’s request Friday, after the father of one victim expressed frustrations with how potential evidence had been left unsecured at the property.

Local investigators looking for Ivy Webster, 14, and Brittany Brewer, 15, discovered both girls dead, along with five others including Jesse McFadden, 39; McFadden’s wife, Holly Guess, 35, and her children, Rylee Elizabeth Allen, 17; Michael James Mayo, 15; and Tiffany Dore Guess, 13.

An autopsy showed that McFadden shot the victims in the head, some multiple times, before killing himself.

McFadden was scheduled to appear May 1 in a jury trial in Muskogee County, where he faced one count of soliciting sexual conduct with a minor by use of technology and one count of possession of child pornography.

Those charges came while he was serving a 20-year sentence for a first-degree rape conviction in 2003. He was released from prison in October 2020.

The investigation remains ongoing as the OSBI looks at items recovered at the scene.

The state agency was called in after members of the Webster family were allowed inside the home last Thursday.

An Oklahoma City TV station joined the family as they entered the home, where they filmed items in plain sight including cell phones, computers, handcuffs, bondage collars and lube in a laundry room, books on witchcraft and sex toys in a master bedroom and a chain hooked to the wall behind the bed. The video also showed the kitchen with a chain hooked to a counter.

No new details have been released as the OSBI continues their investigation.