The people of Broken Arrow, Okla.—including seasoned investigators—are having trouble dealing with the horror that unfolded in a home in the Tulsa suburb late Wednesday night. Police say two teenagers arrested after five people were found dead in a home are brothers who are suspected of killing their parents and three younger siblings, NBC News reports. Robert Bever, 18, has been named as a suspect in the murder of his parents, David and April Bever, the Tulsa World reports. Bever and his 16-year-old brother are also suspected of killing their 12- and 7-year-old brothers and a 5-year-old sister. A 13-year-old sister was found critically injured in the home, while a 2-year-old was unharmed.
The brothers—who allegedly fled the home as police responded to a "silent" 911 call, possibly placed by the injured girl—are being held separately in the local jail pending transfer to Tulsa, the World reports. A police spokesman tells CNN that bladed weapons, including a hatchet, were found inside the home, "which would tell you that the scene was pretty gory." He says the killings in a "very middle-class" neighborhood are without precedent in the city's history. Neighbors tell the AP that the family's children appeared to be home-schooled and weren't allowed to play with other kids. "I'm shocked," a neighbor says. "I feel so bad for everyone who walks into that house. You can see it in the faces of the officers when they come out."