Mass stabbing and familicide in Broken Arrow, Oklahoma, US
The Broken Arrow murders, otherwise known as the Bever family massacre, were a familicide and mass stabbing that occurred on July 22, 2015, in Broken Arrow, Oklahoma. The perpetrators, Robert and Michael Bever, murdered their parents and 3 siblings. It was the deadliest crime and mass murder in the city of Broken Arrow, until a murder-suicide in October 2022 which killed 8 people.
Daniel Bever (age 12) called 9-1-1, saving the lives of his sisters Autumn (2) and Crystal (13) by alerting authorities. During the call, the assailants ambushed Daniel in his room and he was subsequently murdered. Crystal, one of the two survivors, identified two of her older brothers, 18-year-old Robert and 16-year-old Michael, as the assailants. The brothers were subsequently arrested and charged with five counts of first-degree murder and one count of assault and battery with intent to murder. The perpetrators were sentenced to life in prison without the possibility of parole.
Perpetrators.
Robert Davis Bever (born September 17, 1996) and Michael John Bever (born November 4, 1998) were American homeschool students who are currently serving life sentences for murdering their parents and three siblings on July 22, 2015.
Background.
Neighbors said the Bever parents homeschooled their children and kept them from interacting with neighbors or other children. The family's lifestyle was reported to be so inconspicuous that some neighbors found out the full names of the entire family for the first time when the medical examiner released them. Neighbors also reported strange and unsettling behavior by Robert and Michael.
Defense attorneys stated that David Bever was physically and verbally abusive toward his children, according to Crystal's testimony. Robert claimed that both of his parents were abusive to him and the other siblings. He said his parents would often talk about people they hated and would refer to the biblical Armageddon as "a retribution thing for everything they hated about the world".
Robert confessed to committing the familicide. He claimed that he and his brother planned the act for some time and intended to commit a shooting spree outside the family, hoping it would rival and even outdo both the 1999 Columbine High School massacre and the 2012 Aurora theater shooting. Robert later confessed that he and his brother planned to dismember the bodies of their family, place them in storage bins, and hide them in the attic of their home. He also stated that they planned to steal the family car, shoot and kill five random people each at multiple locations, and eventually achieve a body count of at least fifty people. Robert also stated that he admired serial killers, hoped to strike in locations outside of Oklahoma, and wanted to achieve a body count of up to 500 people or more. Robert talked about a plan to make two videos – one showing the bodies that they believed would only be seen by police and prosecutors, as well as another version without the bodies that could be posted online.
Acquiring weaponry.
Detectives said they found a hatchet, knife, darts and a surgical blade inside the Bever family home. Detectives also recovered wireless cameras, a bulletproof vest, a neck protector, a black mask and shin guards, along with computers and cellphones.
A detective said Robert told him he got a job at a religious call center to earn money to buy knives, body armor, helmets, bullets and guns. He said they ordered body armor and collected knives for months. Robert told them he found out he could order guns and get them delivered to a gun shop. He said he ordered ammunition to be delivered to their home the day after their family was killed.
The massacre.
At around 11:30 p.m. on July 22, 2015, police were alerted to 709 Magnolia Court by a 9-1-1 phone call made by 12-year-old Daniel Bever, who stated his brother was attacking the family. Screaming, commotion, and a male voice were heard in the background before the line went dead. Dispatchers tracked the address by searching the number. After a failed attempt to contact the father, David Bever, they dispatched officers to the scene.
When police arrived, they saw blood around the porch of the house. They knocked on the door, heard a faint voice calling for help, and forced their way into the house, where they found 13-year-old Crystal Bever, bleeding from multiple stab wounds. After pulling her out from the house, the officers found Daniel Bever and four others, who were all dead. Two-year-old Autumn Bever was found alive and unharmed with Crystal inside the house. It was believed that one of the brothers responsible for the killings lured out the victims by pretending that he himself was under attack.
Crystal survived the killings but was critically injured from her wounds. She identified two of her brothers as the assailants, saying they lured her to a bedroom before slitting her throat and stabbing her in the stomach and arms. She underwent surgery at a nearby hospital and was listed as being in serious but stable condition. The surviving children were placed in state custody. 
The parents, as well as three children, were all found stabbed to death. Knives, hatchets, and other bladed weapons were found at the scene, along with protective gear. Law enforcement officials said that at least some of the weapons found were used in the killings.
Victims.
Five people were killed in the familicide, and one was injured. A medical examiner determined that the common cause of death was "multiple sharp force injuries". Autopsies revealed the victims died between the late hours of July 22 and the early hours of July 23. The victims were identified as:
Killed
Injured
Aftermath.
The two killers fled the scene through the back door of the house when police arrived and headed into a wooded area behind the property. They were apprehended quickly at 12:18 AM with the use of a K9 unit and arrested without incident. The suspects were identified as 18-year-old Robert Bever, the oldest son of David and April Bever, and his 16-year-old brother, Michael Bever; the pair were found hiding beneath a bush. Robert was armed with a knife at the time of his arrest.
One of the brothers "spontaneously uttered" that plans for the killings were stored on a flash drive inside the home. This flash drive was later retrieved by police when they searched the home for a second time. They also recovered computer equipment and video surveillance cameras, which they believed recorded the murders as they were located near where three of the victims' bodies were found. It was later determined that the brothers planned to make two videos, one depicting the bodies of their family that would be shown to investigators and prosecutors, the other without the bodies that could be posted online.
The brothers were charged with five counts of first-degree murder and one count of assault and battery with intent to kill. On July 25, authorities announced that Michael Bever would be charged as an adult. 
A conviction of first-degree murder in Oklahoma carries the punishment of life imprisonment or the death penalty. However, the Tulsa County District Attorney stated that Michael Bever would be exempt from a death sentence since he was under the age of 16 at the time of the murders. 
Michael Bever's attorney argued against the constitutionality of the decision to try his client as an adult, stating that his client would die in prison and that it was the same as the death penalty. He argued Michael should be rehabilitated instead of imprisoned if he was physically and emotionally abused at home, although no evidence indicated any abuse occurring in the Bever home.
Investigators looked into a shipment of boxes containing a total of 3,000 rounds of ammunition that was believed to have been delivered on July 23. They also began investigating social media accounts belonging to Robert Bever.
On July 6, 2016, it was reported that Robert Bever had attempted suicide by hanging with a bed sheet. Tulsa County Sheriff's Office spokeswoman Casey Roebuck said the suicide attempt, occurring earlier that year on June 17, was discovered by a detention officer during a routine security check. Medical staff cut him down and checked him, determining he was uninjured. He was then moved to suicide watch.
Bever family home.
The family's home and site of the killings, 709 Magnolia Court, Broken Arrow, Oklahoma, had sat vacant since crime scene investigators and cleaners finished the forensic investigation of the murders. In many rooms, the walls have been ripped down to the studs because so much of the home was declared a biohazard after the murders. Local real estate agents have stated that the house also lost tremendous value after the killings due to the stigma that comes with living in a home with a violent past. It was believed the bank would have to sell the house for far less than what was owed by the family at the time of the murders. Because of the ominous appearance of the house, and similarities in the stories, some, including neighbors, had dubbed it "Broken Arrow's Amityville Horror House".
The house had an ominous dark roof that dominated the front of the structure. After the killings, it became a center for dark tourism by ghost hunters, urban legend seekers, teenagers, trespassers, and vandals.
In mid-February 2017, Broken Arrow's city council announced a plan to raise money through the Tulsa Community Foundation for the acquisition of the Bever family home. They hoped that enough money could be raised to purchase the house from the Bevers' mortgage holder and lending company, its than owner. If enough funds were raised, it was planned to tear the house down and, in its place, create a memorial park and garden titled "The Bever Family-First Responders Memorial Park". The house was destroyed in a fire on March 18, 2017. 
On March 27, 2019, Reflection Park was dedicated in an official ceremony. A path meanders through a knoll of grass where the Bever house once stood.
Legal proceedings.
The brothers were arraigned in court on August 3. They pleaded not guilty to the charges filed against them. A preliminary hearing was set for October 28. The date was later changed to October 9, and later to January 22, 2016. It was changed again to February 23, 2016.
On August 5, Tulsa County Judge Bill Musseman ruled that documents concerning the case be made public. They were released the next day, redacted to protect the victims' identities and sensitive information.
Robert Bever eventually pleaded guilty to all counts and was given five life sentences without the possibility of parole, along with an additional life term, on September 7, 2016. 
Michael Bever's trial began on April 16, 2018. He was found guilty on May 9. On August 9, 2018, he was given five life sentences without the possibility of parole.
On July 15, 2019, Robert Bever tried to attack two prison officers at Joseph Harp Correctional Center. An incident report states the attack took place around 4:36 p.m. in the prison dayroom. On November 17, 2020, Robert Bever was sentenced to three more life terms (bringing his total amount to nine).
Robert is currently housed in the Joseph Harp Correctional Center and Michael is in the Lexington Correctional Center (both correctional centers are in Lexington, Oklahoma).
In popular culture.
The 911 call made by 12-year-old Daniel Bever was released to the public on February 19, 2020, after a FOIA request was made regarding the Broken Arrow murders. 
This case has been featured in several television programs including the true crime series "Dateline" on Oxygen TV which aired a documentary called "Killer Siblings: Bever". 
HLN's true crime show "Lies, Crimes &amp; Video" aired an episode about the case on February 28, 2021.
References.
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