(News.com.au) A teenager charged with stabbing his family to death with his younger brother laughed about killing his parents, detectives claim.
Robert Bever, 19, and brother Michael, 17, are charged with killing their parents, David Bever, 52, and April Bever, 44, in a night-time rampage.
They are also accused of killing siblings Daniel Bever, 12, Christopher Bever, seven, and Victoria Bever, five.
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During a two-day hearing to determine if the brothers would stand trial on first-degree murder charges, detectives testified about hearing gruesome details of how they killed their family.
Detective Eric Bentz from the Broken Arrow Police Department said during the hearing that Robert Bever expressed a desire for notoriety for being a serial killer, The Sun reports.