READ MORE: 'China's most prolific serial killer' slaughtered 67 people because he got dumpedThe toddler, who has not been named, and the teen were the only two members of the Bever family to survive and were placed into state custody.His parents, David, 54, and April, 45, siblings Daniel, 11, Christopher, 10, and Victoria, four, died after suffering more than 100 stab wounds in total.The tragic case, dubbed the Broken Arrow Killings, has been described as the "worst single criminal event” in the city’s history.Michael was jailed for life with the possibility of parole, something not afforded to older brother Robert, who will never be freed.He however admitted that he doesn’t think of his jail time as a punishment.“When I was younger all I really wanted was one room that I could do everything in and live in all the time and now I have it so it’s actually really easy for me in prison," Robert said. "I just spend a lot of time in my head and so I’m not really worried about thinking of this as punishment. "I would have considered the death penalty as punishment, I don’t really consider this as punishment.
I consider this as a safety precaution because I’m not a functioning member of society. So I’m okay with it though I try not to think about it too much.”In a podcast interview, Robert admitted he wanted to become a mass serial killer because he had “never heard of that before” - the murderous plan was to shoot up schools, restaurants and movie theatres and the pair had ideas of matching or even topping the Columbine massacre.
Twelve students and one teacher died at the hands of shooters Eric Harris and Dylan Klebold during the incident at Columbine High School in Colorado in 1999.At the time, it was America's deadliest.
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